I got to tell ya, my wife'* Acura Vigor 5 cyl. states to use premium fuel only, and she'* only put about 2 tank fulls in about 14 years. Ya she'* cheap and I don't have a problem with that.

I don't even put premium fuel in her car.

ask your prof to put it in writing so he can pay for fixing it when things start happening.

I had no idea those cars were supercharged or turbo. :?:

Let'* compare apples to apples, eh?

Let me check, NOPE I never said it was */C if you check the
bold area in my post I was replying to a statement SSE14U24ME said, please read carefully before replying.

i fail to see how a nonsupercharged/nonturbocharged car has anyting to do with this thread.

that was wills point. hence the "apples to apples" comment he made.

now back to the intelligence inherent in disregarding manufacturer specs.

And I made no reference to the apples to apples since that'* not what I was replying to?


Can I ask a question? What'* happening to this forum lately? :?

If thats the case maybe you should pull like 5 degrees of timing across the board to rid of the KR. It will hurt your performance from what it would be with 93 octane, but will help your engine survive MUCH better. No knock = much happier pistons.

I don't doubt that with that setup he can run a 3.4 pulley on 87 ocatne with no issues. That is also a setup that should be running around a 3.0 pulley with a good tune on 93 octane, and I'd imagine its tuned in pretty well also. I'm sure I could run a 3.4 pulley on my car with 87 octane with no KR as well, but thats with my mods not his.

It can be done with a 3.4 pulley, but not a 3.4 pulley and those mods.

I understand that you were commenting on the being cheap part and not really the running regular fuel part. However, in a N/A application, it is harder to blow it up due to detonation than it is a forced induction application because of cylinder temps and cyl pressure. Boost is a lot harder on the pistons then a high compression N/A engine. IMO running premium in that setup isn't as important as running it in a forced induction setup.

I'll answer this here in case anyone else is confused by this, rather than in a PM:

There are many members here who may not understand. There are specific reasons supercharged cars, even in stock form, should run 91 octane minimum at all times. Those reasons are unique to supercharged cars and are unrelated to whatever reasons an Acura may or may not be required to. By stating your wife'* Acura has never had the octane it required, you may be telling someone here that their L67 should be fine too, which isn't the case. We're trying to get the most accurate picture across to the topic author and the car owner in question. And an Acura has nothing to do with that whatsoever.

In other words, nothing is happening to this Forum. We're trying to keep this on topic.

Everytime my gf ever put gas in my old GTP she put 87. Of course she drove it conservatively (sp?), but I didn't. I enjoy riding more than driving most of the time, so I never noticed it when I was riding, but when I got in the car and beat it up, I could feel the KR knocking off timing. It took me awhile to realize, until I stumbled across a gas receipt for 87.

Now I have her trained, all of my cars except for my Sonoma take 93, but she even puts 93 in that now