What type of gas do you use?

 

I think most SS/SC guys are using premium because it is what the manual reccomends. Although I thought I heard the 2.4 or 2.2 recommends premium also. I put 93 octane in all my cars!

Mike

 

I use premium but when I get gas shock from the sudden price rise I'll fill up with regular. If I'm going on a long trip I'll put in regular for the long trip through florida.

 

I always use premium in my cobalt!!

 

The 2.2 recommends regular gas so that's what I use.

I've read multiple times that you put in what your manual says b/c any higher grade is a waste of money and any lower is bad for your engine.

 

I put mid-grade. not premium not base in my 2.4.. never tried premium ill try it with it lowers but regular gas got me less MPG than in between.

 

I use premium in my Cobalt SS SC and Sea-Doo GTX Ltd. Regular though in my Caprice Classic.

And always from Shell. Top Tier gasoline ftw!

 

I've used premium in 2 of my cars. The Balt and the Celica. I had an Integra and used mid-grade. And I always use Shell!

 

i use the mid-grade, no need to up the octane on my 2.2 past that...just a waste of a good 20 cents*lol*

 

Premium, the vector tune requires it on my 2.4.

 

When I got my car, the dealer told me it didnt matter what gas I used, that it would run the same on all of them because of the computer. I am cheap anyways so regular .

 

Sunoco Ultra 93 FTMFW!!! My car NEVER gets anything less then Premium/Ultra...

 

I have a 2.2. Run regular b/c thats what it recomends. I didn't notice much of a difference with the premium and only run it at the track.

 

you're wasting htat good couple cents on 89! there's no reason why you should not be running 87

 

to be honest, most gas stations put 87 octane gas into the mid-grad 89 octane tank...same exact gas, but your payin more

 

the whole point of octane is the gasolines resistance to detonation. with a boosted,high compression, performance motor, its necessary to have premium because the cars run very advanced commonly, and they need to havea fuel that can withstand the advancing. Not to mention that when working right the car will use the premium to cause a MUCH better air/fuel mixture before the plug sparks the mixture. I would put it in ANY car. from what i understand also its alot cleaner on the motor and the parts also tend to last longer seeing as how the car has to work LESS to get a perfect mix to combust.

i would never recommend this but if u were to put regular in lets say a ss/sc or something that required it. 100% proven the car WILL misfire. or predetonate. the fuel will ignite purely from the compression. not from the spark plug sparking. if it means anyhting diesels dont have spark plugs as many ppl know, they just rely solely on compress diesel fuel and having it ignite without a spark . had a big like debate/question going on at school(uti) about diesel fuel and octane ratings with teachers and students. from what i remember i was told deisels have an octane of like 54? i think either way its VERY suceptable to detonating before a "spark" is needed hense the lack of plugs.

 

you started out great, but then went back to the world of myths!

it doesn't burn cleaner, doesn't burn better, just harder to burn.

 

your right. let me amend my comment before. it doesnt work cleaner then. sorry for the misinformation on that part. lol thanks for the corrections i wasnt too sure on the cleaner part if it was true or not

 

you're welcome... there's myths that it burns cleaner, hotter, and helps clean the engine and parts. very common myth, don't feel bad

these are probably all spread by the oil companies so people think they need more expensive gas. like they don't make enough money as it is!

 

Premium ONLY in my SS/SC. I don't care how high gas goes, I paid for the car, I'll pay whatever to keep it running right.

 

I'll be picking up my new 2.4L SS next Wednesday - what is the recommended fuel rating for the 2.4L SS? Mid-grade or premium?

 

Mid-grade I believe.

 

Premium...only from BP

May drop to mid-grade when prices shoot back up though

 

I have a 2.2 and i have tried all 3.. didnt notice any difference so i use regular. I may throw some cleaner in or some some cylinder lubricant everynow and then.

 

when prices go up.. regular, mid-grade, and premium all go up.. so the difference is always the same between levels

example... regular 2.199 / midgrade 2.299 / premium 2.399
12 gallon tank = $26.38 / $27.58 / $28.78

gas rises!!!
reguar 2.599 / midgrade 2.699 / premium 2.799
12 gallon tank = $31.18 / $32.38 / $33.58

im just pointing this out.. a lotta people around me drop octane levels when prices go up when they need the higher octane for their performance vehicle.. when in reality the price difference is the same ... if ur car doesnt need the higher octane then use the lowest one necessary