JDM engines

[Ghost]

True or False?
With a JDM engine you always need to add octane booster because they run higher octane over there?

[ZoltecRules]

True and False. All depends on the octane rating you use. Just remember that not all premiums are the same. I'd say a stock turbo JDM engine should be safe with 93 octane or higher.

Be careful of those piss-crap 91 octane's I've seen. Also, not sure if you guys have it where you are, but Ethanol has it's ups and downs too.