Sound Auto
New member
I came from a 2010 Tacoma 4dr long bed w/ 255/85/16 KM2's on it and felt it would walk all over my 2012 SR5. I saw someone had posted the different power rating with higher octane so I gave it a try. I ran my tank really low of regular, filled it with 93 octane and drove 10-15 miles. I then pulled the battery cables and shorted them together to drain all of the caps in the truck. Hooked up the battery and gained fifty miles in range. I also drove it to and from work gently before finally mashing the gas to be very surprised by it's new found grunt. Apparently with the dual variable valve timing it was able to advance timing quite a bit more. The truck even has a low tone rumble that was not there before.
Another thing I addressed was tire pressure. The dealers usually set tire pressure to 32psi for comfort. However, that does not lend well to acceleration and braking. I find that 42psi make the truck feel a little more lively. The best part is if you don't like it let the air back out. Coming from E load range tires with 55psi the ride doesn't seem to harsh. So far my family and customers haven't made mention of a poor ride.
2 things you can try that won't cost a ton of money. If you don't get the extra pep out of higher octane(remember to reset the truck) and tire pressure go back to soft tires and regular gas.
Another thing I addressed was tire pressure. The dealers usually set tire pressure to 32psi for comfort. However, that does not lend well to acceleration and braking. I find that 42psi make the truck feel a little more lively. The best part is if you don't like it let the air back out. Coming from E load range tires with 55psi the ride doesn't seem to harsh. So far my family and customers haven't made mention of a poor ride.
2 things you can try that won't cost a ton of money. If you don't get the extra pep out of higher octane(remember to reset the truck) and tire pressure go back to soft tires and regular gas.