Acceleration Feel Rough
#1
Acceleration Feel Rough
I just bought my tc two weeks ago and first 200 miles it felt smoother than anything I have ever driven. Since then (I am not at 800 miles) it feels kind of rough when I accelerate and break. It feels like it has gotten harder to accelerate in the lower gears (I have AT) and doesn't really feel much different when I am going over 60 mph. The only change I had was that I decided to use shell v-power (91 octane) after the first gas tank. Obviously it sounds like that might be the problem. I was just wondering if anyone could explain to me why a better grade of gas would cause such a problem. I feel like taking it into the dealer to check out but I think I might first run on a few tanks of 87. Any info would be appreciated.
Thanks.
Thanks.
#2
The tC's engine was designed to run on normal 87 octane. Using a higher octane fuel can actually be bad for the performance of the your engine. Cars today are designed to run on a specific octane that will minimize engine knocking (what you are probably experiancing) and are not neccessarily designed to run on fuel other than that.
#3
Check out this thread for more discussion on this:
https://www.scionlife.com/forums/vie...r=asc&start=25
https://www.scionlife.com/forums/vie...r=asc&start=25
#5
I think it's just psychological and you just got used to your car's power. But when switching from my parent's 02 Accord and 03 Civic to my tC, I can feel a huge difference in power... until I get used to it again.
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RY_TC07
Scion tC 1G Owners Lounge
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07-18-2017 05:18 PM