Quote:
Originally Posted by theStig880
I feel dumb for having to ask this but Id rather be safe than sorry. I'm finishing up my Sr swap and there is still some regular fuel in the gas tank. About an eighth of a tank or so. My question is, will it be harmful to fill the tank with premium and run it or do I have to drain the old regular out somehow? If I have to drain it, then how do I do that? Thanks in advance.
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Should be okay. Stock setup I assume. Just fill it up with premium. All will be good. Don't know how long you had it sitting in there. Probably good idea to not do a lot of hard driving until that tank is empty.
Quote:
Originally Posted by I'm Redline
If it really makes you feel better, you can add a bottle of that local auto shop bought Octane Booster to boost up that 87 you put in the tank, but really, it's only  since it is just a bottle of 'feel good' for ignorant people who don't know any better  |
lol, what? Why would you tell him to get it but it just gives a placebo effect?