Any benefit to higher octane in a V6?

[crazy4camaro]

Have tried higher octane found no markable difference got 18 mpg with either fuel

[cliffdog89]

Originally Posted by Z28bryan

So much misinformation!!!!


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[xRedsox]

Higher octane is better for a new engine, if you have had your v6 for over a year or too than it won't really change besides performance.

[Camaro_Corvette]

Wow this thread has a lot of BS in it.

[Josh.Duncan]

Best advice is to read the owners manual. It specifically says in the V6 to use regular unleaded rated at 87 or higher. In the V8 it says to use premium rated 91 or higher. I personally use ethanol free regular rated 87 right now.

[Forte]

I personally use 91 because I feel as though I can tell a difference. Can I actually? No idea as I haven't done any studies myself. There are so many conflicting opinions in this thread being passed off as fact, it's terrible.

Anyway, the price difference is negligible and I feel as if it performs better so I'll continue with that until either I can't spare the extra 3-4 dollars per fill up or something with actual knowledge is posted here.

[searam]

all newer cars these days should be on 89 at least i think personally. keeps things clean and running efficiently in todays modern engines.

[Notorious Bob]

Doesn't matter if it's fuse pulls or octane choice - out come the trolls and the mis-information bunnies

Best advice is to try it and make up your own mind...

Also helps to gen up a little bit on engines and apply some common sense!

[Evergreen6]

From the perspective of someone who commutes a lot... It's not that I can't afford the extra couple $ per fill, it's that I don't see any reason to, and the benefit of a few extra horsepower (if it even helps) is pretty negligible.

The 3.6 isn't a rare engine, and if rental cars are any example, they still continue to run after a hundred thousand miles using the cheapest crap gas that people can find to stuff in 'em.

My V6 is doing fine with 87 and I don't have any plans to change. I can bet the warranty on that, because that's what the owner's manual says to use.

I'd entertain the discussion of using higher grade gas if we were talking about engines that have no electronics and could be damaged by using regular grade gas. But, we're talking about an engine that is electronically controlled and can pull its timing and adjust accordingly for the proper burn.

[stoopid]

Interesting read on the subject...

http://www.caranddriver.com/features/regular-or-premium

Our tests confirm that for most cars there is no compelling reason to buy more expensive fuel than the factory recommends, as any performance gain realized will surely be far less than the percentage hike in price.

And another...

http://www.edmunds.com/fuel-economy/...g-premium.html

[Doggit]

it's a total waste of money, but 89 is only $0.15 more a gallon, that's $2 a week.. if your going to drive the car hard, then I'd say it's worth peace of mind for $2.

[Desertion]

Everyone just needs to do whatever they want to do and if they're wondering if something is better, try it out for yourself and see if you're satisfied. If not go back to regular, simple as that. As for me I've always ran 91 because that's the highest I have access to and don't care about the price, I fill up on average once a month some times every other month, so gas price is the least of my worries. If you can afford it, do it if you want, If you can't, don't. The car will be fine on 87.

[EastWood-SS]

performance wise, no. Premium gas IS and always will be better for the overall lifetime of an engine IMO. Especially if where you're at its like here where the premium gas has no ethanol as opposed to the regular that does.

[jcamaro]

The octane rating determines how much compression can be made in the cylinder without causing pre-ignition (combustion before the spark). Pre-ignition leads to knocking. If your motor isn't knocking, there is no benefit to using higher fuel other than sometimes they are cleaner.

In the long run, buy whatever makes you feel better about driving your car. If you like knowing that you're getting the best $ per mile, stick with regular. If you feel the car runs smoother on premium, then stick with it.