I've been wondering about this for a while. When I first started the game, I noticed a substantial horsepower drop on Nismo 400R GT-R that I had. I made oil changes to the oil often and never let up. But it seemed somewhere between 5k-6k of miles on the car, I got a big drop on my engine. Then it happened again at around 7500 miles. After that the damage leveled off. Ever since that incident, I've forgone nitro and been afraid to use the upgrade since. I've only used on it cars with low horsepower ranges (0-100 hp stock), and even then it still did some damage (a 10k cappucino I used got a slight horsepower and significant horsepower drop practically off the bat). It is known that in real life, engines do receive damage because of the use of nitro.
Can anyone verify this as true?
Can anyone verify this as true?