Personal vehicle used to be the second largest family expense right after the expenses for the flat or house. Calculation of the vehicle running expenses is not easy, these are rather complicated due to fact, that it is not just the question of the fuel price. And even worse – it is different with every single car!

So how can I find out the future running expenses of my car for next several years?

What is the difference between Free of charge and Paid calculation?

Free of charge calculation is only for the basic review of the Total running expensives of the   brand and model.  It  takes account  of the age and driven mileage of the vehicle. It  is adjusted for period of 2 years and 800 km per month. All adjustments are in their basic JiTiS values. It is expected that maintenance, reparations and parts replacement has been completed according to producers  instructions and adjusted parts lifetime. So it does not take into consideration the real vehicle status, personal specifications of use and other parameters.

Paid calculation is for specific vehicle, vehicle owner, not just  for general brand and model. It enables to change and modify the Personal parameters, especially the yearly mileage and calculated time of use. Prices adjustment, specification of the Technical parameters and add Real status of depreciation and completed maintenance and find out the real value of neglected care and strongly specify the three Years running expenses calculation. After payment, you  can repeat calculation 10 times with  many parameter changes within one month.

So one calculation for one car costs 6 €?

For chosen vehicle you  can input  or change parameters preset in JiTiS. After change and input of  your  own parameters the another calculation will be charged according to  the price list. After payment, for a certain  time you  can change any parameters and adjustments, you  can also  change completed maintenance and repairs.  Such calculation can be repeated 10 times. So  you  can better find out  the value of the vehicle and based on discovered facts, for example declared maintenance or repairs, make your calculations more accurate.  It does not matter if you  are  not familiar with machinery. We will lead you through the system of  technical questions those are systematically targeted to various functional devices. We will show  you what should be targeted, asked.  So, you  will find out  huge difference on running  expenses even comparing two vehicles of  the same model. So  you  will find out what was neglected and how much will it  cost in close future.

What parameters and adjustmens can I change in Paid version?

For specific vehicle in Free version we can change and adjust or change parameters and values preset in JiTiS. Another calculation with changes and your  own specifications input will be charged according to the price list. your  own parameters the another calculation will be charged according to the price list. After payment, for a certain  time you  can change any parameters and adjustments, you  can also  change completed maintenance and repairs.Such calculation can be repeated 10  times.

In personal adjustment you can modify

Yearly driven mileage – from 3.000km – 60.000km per year.

Summer and winter mileage can be input separately.

Drive style – sport, fast, obvious or economy.

Quality of the spare parts is of three different  levels, separately for chassis and other vehicle parts.

One of three quality levels for tyres,


In section technical parameters we can change

Manual or the automatic gear box


Rim dimensions of summer and winter wheels.

Your vehicle consumpion – add your value instead of preset – JiTiS one.

The oil change interval


In section completed maintenance and repairs

Last maintenance and repairs in number of items

Wear out value of the chosen sections and parts by chosen items


In section Neglected care you can add

completed maintenance and  repairs.

In section  Prices adjustment you  can change

Price for the Fuel

Price of the Service work

Engine oil

Actual vehicle price


In section Other adjustment can be changed

Vehicle Insurance

Highway stickers

Garage and Parking spot fees

Road tax

Other obligatory taxes

Car wash fees

Other secondary expenses.

Why should I pay for the Certificate when selling the car?

JiTiS certificate of the vehicle running expenses.

Certificate completes the vehicle sales offer – it contains the basic information regarding the Future running expenses. These are expressed in one digital value – value of the Total running expenses. This is beyond he selling price the most important point of interest for every potential vehicle buyer.

The total running expenses include expenses of the Neglected care are based on dozen of parameters and all informations regarding the vehicle stratus, fuel economy, maintenance expenses etc. as described in JiTiS definition.

Seller is  only to  insert the informations regarding  the maintenance and repairs status, together with the level of wear out of single chosen devices. The other parameters are set  for Certificates the same way. This guarantees comparability of any vehicles regardles the age, mileage, brand or model.

Well set and processed informations regarding  the vehicle, especially maintenance and repairs,serves well for comparison of the future running  expenses of other vehicles. Herewith, seller advices the way of maintenance and it´s status. In Certificate, there is clearly specified the vehicle maintenance and repairs so  the buyer can check these during the car inspection.

Since the Certificate is calculated and issued it is impossible to change it . Calculation is memorized in the JiTiS  system and can be found out  and  verified  on the web sites  www.jitis.cz. This double check is  free of charge. New potentional buyer can add his personal adjustment and preferences into  adopted Certificate and let recalculate.the Running  expenses  especially for him. You  will not need any assistance,  you  will manage this yourself.

How do you know what does the Neglected care on chosen car cost? What does it express?

Neglected care on chosen car is everything  that  was to  be completed according  to  the age of the car and driven kilometers and that  was not done and marked in item – list maintenance and repair. Total  of these items is the final price for neglected care.At  the same time, this is presented in % of the vehicle value. Note!  The value  of neglectzed care  is  not  calculated in the future total expenses!

So  we suppose, that if the car maintenance and repairs are not  confirmed, this was not  done and it will be necessary to  complete it. Important is also  the status of residual  lifetime if this is set. Very important is also  the status of depreciation – it  should not  be undervalued.  Then the car repair is planned after the lifetime period is gone and such become the part of the future total  expenses.

Neglected care is  the answer to the most  frequent question and order in a service yard after used car is purchased and service yard is asked for service check and the information what has to  be repaired right  now so the car will run with no problems. Then the new owner is badly surprised what else has to  be paid in addition.

Is it rather difficult to be familiar with it?

Not at all. jiTiS will guide you through the input  of all important items those can but  need not to  be filled in. You can obtain many important  informations regarding  future expensives based on set vehicle brand and type, driven  kilometers and car price  –  already in the Free calculation. It is up to  you  if you will be intereted in more detailed informations.

When buying a second hand car  It is up to  you, again, how many informations you  will  find out and input into  JiTiS . We will recommend  you  what to  ask and what should be focused, will warn you  about  possible problems. Then it is up to  you  how much will you  believe the sellers informations.

Try it . Most of the items offer support and with just one payment you  can change your  calculation 10 times


Will you advice me what car shoudl I buy and not to be tricked?

Every second hand car purchase is buying a pig in a poke. Our JiTiS system will help  you to  open that  poke and let you look at it. It  is only up to  you  how many informations you  will grab, double check and let  recalculate in JiTiS system. With JiTiS, you  will not forget anything  important.

We will not choose the car instead of you but we will enable comparison of the cars you  do  enjoy. We will bring you closer comparisom of the future expenses for next three years for every single car.

Frequent question : should buy the diesel or petrol version? In fact, this is a question how much will I pay per single driven kilometer in comparison with both versions. And we will calculate this for you. You  will see  the differences in future expenses for three years so you  can decide this yourself.


Should buy the diesel or petrol version?

Frequent question : should buy the diesel or petrol version? In fact, this is a question how much will I pay per single driven kilometer in comparison with both versions. And we will calculate this for you. You  will see  the differences in future expenses for three years so you  can decide this yourself.

Anyway, there are considerable differences in running  exepneses even comparing two  identical cars, the same brand and type, same price with the only difference of odometer status and just one year of the age. On higher mileage car might  be already completed larger repairs while the another  ona is still to  run through the service care.. Both cars also  might  have the same engine but  different version, so  the service interval for the  timimg  belt  replacement  would be different atc.  We will calculate all this for you.

Every second hand car purchase is buying a pig in a poke. Our JiTiS system will help  you to  open that  poke and let you look at it. It  is only up to  you  how many informations you  will grab, double check and let  recalculate in JiTiS system. With JiTiS, you  will not forget anything  important.

What is the definition of the spare parts qualityfor chosen car? Why and how to choose ?

Spare parts quality have the influence to  the spare parts price and so it have also  impact  to  the running  expenses. Obviously new cars are serviced  using  original spare parts or  first  quality spare parts, for old used cars there are another, cheaper alternatives. Guess you  will agree with this. But  what is it during  obviuos car life-time?  There is number of parameters and the car owner priorities  – to  extend the life-time of the car or to  save money.

JiTiS  calculate and assign qualitative group of spare parts that corresponds to  the chosen vehicle, vehicle category, age, driven kilometers, price, single units .. JiTiS chooses spare parts according  to the actual vehicle value so  the parts would not be overpriced but still of good quality.

Choice of the parts quality has also influence to the planned number of kilometers, drive style, ratio of the season use – summer / winter for the tires and other  parameters.

In the basic Free calculation the JiTiS calculates and appoints the qualitative groups and according to  this the expenses for repairs are calculated, too.

For Certified calculation of the future running expenses the calculation and assign of the parts quality can not be changed.  Certificate is determined for possible vehicle buyer, his priorities are unknown in advance.


What are the differences between spare parts quality?

There is a large range of the spare  parts of various quality level available on the market. These are different – from top  original quality up  to non quality ones from the scrabyard.

In JiTiS system  we work with  three quality levels – Q1, Q2 and Q3 – separately for the parts of chassis and the steering –  the “safety parts” , then tires and the others. Q1 is the top quality that  corresponds to  the original parts and equal ones. Q2 is the medium quality and price, Q3 is the cheaper alternative.  All the parts must  be confirmed according to relevant standards. Price differences are up to dozen percents.

JiTiS choses parts only from authorized supliers. Parts with unknown origin, non confirmed, non guarantied or parts from scrabyards are not  used in the JiTiS calculations.

How do you calculate single calculations values?

Application reads necessary technical datas from producers databases and spare parts supliers. JiTiS refills these datas of single components depreciation value according  to the time and driven kilometers.  Specific region datas,  price level, local regulations and taxes, spare parts producers and distributors preferences  and number of other  parameters are also  taken into  consideration.

Then all datas are avaluated and using  applied mathematics calculates and presumes the future running  expenses. The additional vehicle informations set by customer are also taken into  consideration.

Fuel expenses  ( patrol, diesel oil, LPG … )

Impact to the fuel expenses have – value of the fuel economy, the engine displacement, engine output, vehicle age, size and weight, drive style, future driven mileage, traffic statistics of other vehicles,  actual fuel price and other datas..

Tires expenses

Impact  to  the tires expenses have –  tires dimensions, value of depreciation, actual market  price, future driven kilometers, size and weight  of the vehicle, depreciation per driven kilometer, drive style, tires quality, summer and winter traffic and other parameters.

Service expenses – price for the service work

Service expenses are quated according  to various brands and models time standards, price per service hour for single brands. Influence have also the price for model, age of the car, service yard quality and regional price.

Service expenses – price for the spare parts

Service expenses are also quated based on knowledge of necessary spare parts, databases of supliers and producers, spare parts prices on the market and single price and quality categories. Influence have also the parts depreciation, future driven kilometers, parts replacement schedule, quality request, assigning parts price to  the time value of the vehicle.

Price for the vehicle depreciation  ( difference between  new and the residual vehicle value )

This is deduced from the actual vehicle price, the age and driven mileage, vehicle status when bought – depreciation of important  vehicle components, future driven mileage and future depreciation of important vehicle components.

Neglected care calculation

Neglected care is calculated based on known informations ( set by owner, service yard or seller ) – components status, completed repairs, parts replacements and completed maintenance. Affected is also  esceeded parts life time. So are calculated the future running expenses to  get  paid in addition.

Price for the third party insurance – insurance for the vehicle use

Calculation is completed based on the market  insurance offer depending  on the vehicle brand and model.  Affected are also users datas, bonuses.

Expenses calculation is refilled by graph with the expenses imaging. Displayed is the total time period, monthly expenses for planned period and expenses for one driven kilometer.










How should I undserstand calculated values and graphs set by single user?

In JiTiS Certificate and in  JiTiS expenses Study  36Pay  there are displayed and also  in written form presented  single informations columns and graphs. All these prices are presented incl. the local V.A.T.  How should I undarstand this and what can I discover?

Left headword

contains Unique alphanumeric  QR calculation  code . Applying this code you  can continue and work with the calculation whenever.

Then, there is the date of calculation and Range and time for the future expenses calculation – for example 800km x 36 months.

Table study

It contains the list  of set parameters as set in the first step – in the Free version

In addition also calculated  Basic total TCO  values

total expense for set time period and driven ( planned ) milkeage

total value of neglected care

recalculated expenses for the future month and driven kilometer

Table others

It contains the  set vehicle technical datas recapitulation

The JiTiS 36 Pay calculation is refilled and offers the list of parameters and informations to add  – such as the individually set fuel economy, preference of the spare parts quality, prices adjustment, way of use and others.

Tables and graphs of the total expenses 

These contain the Total future running expenses according to  various subtrims

Table and calendary expenses Graph

It contains the List of expenses per single quarters of the year and kilometer status for period of calculation. First item is for the non completed time period – always since the date of setting till the end of first calculated quarter, the last on  is for the rest of the days in the lats quarter of the year.

From displayed values the expensiveness  per single seasons can be seen, especially the larger investments for expected repairs.

Table of Amortization

Amortization is integral to the running  and ownership  expenses. It  is calculated based on the set entry vehicle value and calculated theoretical vehicle value at the end of the time period. Calculation have many parameters and it  is defined by JiTiS algorithm.


Table of Neglected care

Here is the list of the vehicle maintenance and repairs those had to  be already completed and those are not recorded in the passed maintenance and repairs. In fact, the total value is the dept to  the maintenance. This is not calculated in the future expenses !

Take special care of this list cause this could have an impact to non expected expenses in volume ut  to all debt value.

 Table of the previous maintenance and repairs – the most  important list  for a buyer

This table displays everything that have been ever fixed on car or depreciation staus of chosen parts and components. Informations are presented according to  odometer status:

What the single items mean:

title, kilometers in thousands

operation completed in kilometers status, part has been replaced by the new one

title, kilometers status and 100% status

the part has been replaced at presented mileage by the new one

title, kilometers status and status in %

the part has been evaluated at presented mileage, checked and the open balance lifetime has been measured in  %

title and kilometers status  with the date of protocol in % issue

Parts or component measured or estimated open balance lifetime in % by the date protocol issue

It is necessary to verify all the informations regarding previous maintenance. It is necessary to check these and make sure that these are not fake and can be supported with repair orders, repair invoices, evidence in a service booklet, protokols, measuring,testing..

% of the life time open balance could completely change the parts replacement calculation!


Table of the future expenses

Displayed is – the List of the estimated dates of the maintenance and repairs of the car. Repairs and maintenance are arranged according to the price for repair, always is presented the kilometers status and the quarter recommended for operation. Price is always the totalof the price for the spare parts, work and the local V.A.T.

Several items repeat appears if the service operation in the calculated period is done more times. Also parts price depreciation can appear – in case that the lower quality parts ( lower Q parts category ) are used for the older car and calculated time period.

Item tires – here, there can appear the purchase and mounting value for the new tires / even just for one axle – according to the vaue of depreciation or only the price for the tires replacement – that means summer / winter tires replacement

How should I write in previous maintenance and repairs?

Informations regarding  previous maintenance contain :

Completed maintenance operations
Completed repairs and specific parts and components replacements
Specific parts and components depreciation levels

 Completed maintenance can be entered down in section

Values adjustment – previous maintenance and repairs

Neglected maintenance and repairs
This can be entered down eather separately or in combination :
Kilometer status
% life time open balance

It is possible to enter only one data or also combination

Single Date – that means the date when operation has been done or part has been replaced.

From the kilometers run curve is calculated the kilometers status and new 100% partt is assigned.

Independent odometer status – means the status of completed operation by kilometers status

From the kilometers run curve is calculated the date and new 100% part is assigned.

Independent open balance values in %

To depreciation status present date and kilometer status is assigned


date and open balance life time value in % – kilometers from the kilometers curve are calculated .

That means that the depreciation value was established in history / for example when changing the tires

kilometer status and open balance life time value in % – the date from the run curve will be added

That means that the depreciation value was established in history / for example when changing the tires


– date, kilometer status and open balance value in % – all datas will be entered

That means that in that date was driven number of kilometers and depreciation status was %

Beware of errors when entering :

– the previous maintenance date can not be in the future

– kilometers status must not be bigger than the status entered today

– kilometers status and dates must correspond to reality, must not be gaining

– life time open balance must not be bigger than 100%

– kilometers run between the operations must not exceed 10.000km / month ( the same is valid if re-counted for km / day )

Beware of fake datas!

All datas regarding previous maintenance are presented in the certificate and the calculation. It is necessary to check well and verify if the datas are real – marked in the maintenance documents, invoices, service booklets, lůist of the spare parts, declared open balance life time, testings…

– % of the open balance life time can completely change the calculation for the parts replacements !

How should I guess the tires open balance life time?

First of all we have to  separate the tires for summer and winter.  Summer tire must have according to the law  pattern depth at least 1,6mm,  winter tires 4,0 mm. If it is less than mentioned the tires are gone and must be replaced. Very often there are control spots on the tire surface announcing the tire life time limit  specially of 1,6 and 4,0 mm.
So it is necessary to  check and measure the depth of the pattern so we can find out the mass of tire to  run.
Simple estimate  – we can say that 1 mm of the tire pattern is of 15 % of the life time. Of course, it depends on the tire dimensions, the drive style, summer or winter run.. But there is no need toi  be afraid of errors

JiTiS system will calculate this according to  its internal algorithm.
In order to  make it easier the life time open balance of complete tires set is to  be entered into  the system although, in fact, the worse tire status would be better. In service application and permanent care it will be possible to  enter the life time open balance for every single tire – in milimeters of the left pattern.
In case, that the open balance life time of the tire is not entered, JiTiS system calculates automatically with 50%status. We are working on system calculating the all season tires.

How sholud I enter the open balance life time of the disc brakes or the brake pads?

Here, there we can enter the qualified estimate or the thickness of the brake disc and the brake pads have to be measured. Your service yards will do that easily.

Every brake disc has its minimum thickness in milimeters described by producer. This is the limit, when the disc must be replaced. Difference between thickness of the new disck and the minimum limit ( it used to be 2 – 4 mm ) we can find out the open balance life time of the disc in %. Example – difference of 3 mm and depreciation of 2 mm the open balance life time is still 35%.

It is valid also for the brake pads.

Do not forget, that the brake parts must be replaced at the same time, both sides on the axle, so it is necessary to enter the status of the worst part.

How should I enter or check the status of depreciation of the chosen parts?

Depreciation status is to be find out and measured – checking the brake discs, testing the shock absorbers. It is also necessary to evaluate chassis clearance, bearing status …

Wherever it is impossible the professional evaluation is necessary. The last date of the part replacement can be also entered with the date and kilometer status so you can avoid the depreciation in % entering. JiTiS will calculate the life time according to its internal adjustment.

Why there are two sets of rims to enter – summer and winter sets ?

Expenses for tires are rather important part to the future expenses. Tires or sets of tires must be changed twice per year. JiTiS calculates if there are two sets of wheels for simple change or if the service yard has to  change the tires on the rims. Then it will be much more expensive – paying for disassembly, assembly and balancing – especially expensive with larger tires dimensions. And this is exactly what JiTiS will calculate for you.
Part of the tires expenses are also  expenses for the used tires removal. In case of new tires assembly also  the rims replacement.
JiTiS also differentiates the tire depreciation on driven and pulled axle or the 4 x 4 vehicle version so there could be different depreciation and different timing for operation on various axles.

Are you interested in the possibilities JiTiS? let's go.. try for free or read more