88RX7annived

I was just wondering if using 87 octane in my 88 Turbo II was ok? Would i be better off using a higher octane to prevent plug fouling? Also what type of plugs should i use for it since i want to change them this week. Thanks!

rmaiersg

You want to use 93!!! Not for the plugs but to keep your engine from detonating. All it takes is a ping to blow a seal. The NGK designed for rotaries will do fine. The don't have the hook for the spark the bottom is flat. They are pretty expensive though.

Geoffman72

87 isnt great for it. I recommend using a good premium fuel.



And for plugs, stick with NGKs. BUR7EQ and BUR9EQ. I forget which are leading and trailing, but they are marked with an L or a T.

joe2dmax

this question is kind of related to his question. anyway, i have an 88 NA and there is really nothing done to it except e-fan, intake, POS pacesetter header. Was wondering what would be the difference in using an 87 versus a 93 octane besides 87 burning cleaner than 93.

Leetheslacker

With a na lower octane gas is better.

ChainSawOnSteroids

fro n/a 87 is the best gas to use, it burns cleaner and performs better

relisys190

Yes, Non turbo.. 87 runs best.. (i've seen dyno numbers, i acctually lost 4-6 HP with 93 octane in my car...



If running turbo, you have to run 93, only cause its a turbo, and you dont want to detonate.

CrazyAssRX7

too many different opinions!

there has to be a decision maker here

ROTARYROCKET7

89 for me

SeventyMach1

Just run mid grade. Not too high, not too low. Actually I'm J/K. That is what I run in my N/A, though. It's what gives me the best performance. Also, I think it depends on what you've done to the engine...