GT5 power variations explained
You've probably wonder at least once why the power of a car you own in Gran Turismo 5 doesn't match the data you found on internet, whether it is on mygranturismo.net or in a message on your favorite forum. Answers follows...
The total power value of a car is subject to three different variations that combines to multiply the base power. The overall result seems complex, but underlying rules are quite simples if we consider variations separately:
|Variation Range||New Car
|How much?||How?||How long?||How much?||When?|
|Short Term Variation||+5%
|0%||Instant +5%||Do Oil Change (250 Cr.). Also included in Engine Overhaul.||0-200 km (124 mi.) since New or since last Oil Change (or Engine Overhaul)||-5%
|from 200 to 300 Km (124-186 mi.) since last Oil Change (or Engine Overhaul)|
|Middle Term Variation||5%||5%||Instant +5%||Do Engine Overhaul (on high mileage car)||0-5000 km (3098 mi.) since last Engine Overhaul (or car New)||-5%
|from 5000 to 15 000 km (3098-9294 mi.) since last Engine Overhaul (or car New)|
|Long Term Variation||3%(2)||0%(2)||+3%
|Just drive from 0 to 300 km (186 mi.)||Thousands of km/miles||Around -3%(2)||Over tens of thousands of km/miles|
These informations are based on current knowledge of the game at www.mygranturismo.net and is subject to future updates.
(1) : Old oil usually end to a car losing the benefit of the 5% gained on last Oil Change. But we observed an additional 5% power decrease on a car driven several thousands of km without Oil Change ; in this case the Oil Change resulted in a 10% increase (5% recover + 5% usual benefit)
(2) : Due to the very small – in both quantity and speed - power loss that occurs on cars with very high mileage, it is very difficult to measure the actual maximum decrease.
Percent in table are percent boost from the current power of the car. For exemple, a new car with a power of 500 will reach 525 after Oil Change.
The above table explain why, when you buy a car and apply Oil Change, then the Power seems to vary in an odd way in the first 300 km (186 miles), as Short and Long Term variation are part of the equation, one rising while the other is declining.
- #1 As read on table, doing Engine Overhaul is useless before 5000 Km, and makes a real sense around 15 000 km (if you really need these 5% power increase).
- #2: It is useless to do Engine Overhaul and Oil Change at the same time, as the former already include the later.
- #3: Oil Change is useless until the car has been driven +200 km (124 miles) since last Oil Change, and makes sense at +300 km (186 miles)
N.B. : Power and torque (for the RPM displayed on UI) evolve in exact same proportions, this article covers both datas although mentioning power only.