What grade gas is best to use in 2003 DX Civic Manual Tran.?
I just bought an 03 Civic 5 speed with NO Vtec. Is it ok to use premium gas? Is there any benefit from this or can it actually be bad for it? Just curious, I want my engine to run at top performance. I have a cold air intake on the way!....can't wait for it to get here.
Thanks
Thanks
Run whatever it says in your manual, which I'm sure is 87 octane. There will be no benefit to using anything higher in your car.
If it doesn't call for premium don't waste your money. I really don't think a stock 03 DX is going to have any problems with detonation.
minimum required octane rating of 86 on an 03 civic all of the 03+ honda cars are designed to run off of regular unleaded, s2k, accord v6, si the whole 9
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magicoke
Honda Civic (2006 - 2015)
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Nov 4, 2010 12:12 PM




