What Octane will the SS be rated?

[CamaroSpike23]

Originally Posted by The_Blur

I agree, except that the computer can detect whether you are using 93 or 87. There is a tune for each, and the 87 tune doesn't perform quite as well. If you pit 2 Camaro V8s against one another at the track, and only one uses premium, I guarantee you that the premium Camaro SS will win by a small margin.

and have extra gas in the tank to drive home with...lol

[shadowed_Stranger]

Originally Posted by MajorTom

Yeah, here in Missouri we have the lowest prices in the country thank god. 2.79 for 87 and 3.09 for premium.

Pensacola florida I paid 2.58 for regular yesterday :P

[dsatch]

Originally Posted by swifttal

Is that a gallon or a tank? Do you live far from the city because gaspricewatch lists premium as being 30-50 cents more a gallon in most cities in west NC. I feel for you if you don't live near a city with gas competition. I remember when I lived in California and the gas prices were about $2 - if you traveled through the mountains or desert, the crooks were charging $4.50 a gallon. Biggest sleezbags in the country - should be shot in the streets taking advantage of people like that

there is a 10 cent difference in grades here in oregon

[headpunter]

Originally Posted by dsatch

there is a 10 cent difference in grades here in oregon

same in washington

[rico-2SS]

Ok - now that I know a lot more about grades of gas and car performace - who is going to make the change in the first 25 miles to sythetic oil - and is it good to break a motor in on synthetic......by break in rule - drive it like you stole it...haven't had a snowmobile blow yet - my buys that babe their stuff have problems. Just wondering - I took it easy on my SSR and I don't think it had the power it should have after 5000 miles.

This is going to be my summer car so I only plan to put 3-5000 miles on a year - not hard living in MI. Just wondering if synthetic is going to be the way to go.

[CamaroSpike23]

Originally Posted by rico-2SS

Ok - now that I know a lot more about grades of gas and car performace - who is going to make the change in the first 25 miles to sythetic oil - and is it good to break a motor in on synthetic......by break in rule - drive it like you stole it...haven't had a snowmobile blow yet - my buys that babe their stuff have problems. Just wondering - I took it easy on my SSR and I don't think it had the power it should have after 5000 miles.

This is going to be my summer car so I only plan to put 3-5000 miles on a year - not hard living in MI. Just wondering if synthetic is going to be the way to go.

the car should come with synthetic from the factory.

and they break in the motors at the factory.

[fastball]

Originally Posted by rico-2SS

Ok - now that I know a lot more about grades of gas and car performace - who is going to make the change in the first 25 miles to sythetic oil - and is it good to break a motor in on synthetic......by break in rule - drive it like you stole it...haven't had a snowmobile blow yet - my buys that babe their stuff have problems. Just wondering - I took it easy on my SSR and I don't think it had the power it should have after 5000 miles.

This is going to be my summer car so I only plan to put 3-5000 miles on a year - not hard living in MI. Just wondering if synthetic is going to be the way to go.

It will have Mobil 1 from the factory, and never use anything else (I personally swear by Mobil 1 anyway, but others have their own opinions)


Just follow the oil life monitor in the DIC and you will be fine. No longer need to go by the "change your oil every 3 mo/3000 mi" schedule.

[CamaroSpike23]

a rough guide for Compression ratio vs Octane
5:1 67
6:1 75
7:1 82
8:1 87
9:1 91
10:1 93
11:1 95
12:1 103

[EllwynX]

Originally Posted by MajorTom

Yeah, here in Missouri we have the lowest prices in the country thank god. 2.79 for 87 and 3.09 for premium. I buy premium even though I've heard all the stories about how you can get away with 87.

It's currently $2.55 (as of yesterday) and under $3 for premium in South Jersey.

[djm96z28]

Originally Posted by ljustin293

I'm thinkin about premium for one fill up and then mid-grade the next...is this a bad idea??

I've been doing that on my '96 Z28 since it was new - never had a problem. I filled up with Premium (93), then at 1/2 tank fill up with mid grade (89). That averages out to 91 octane--which is considered premium grade. Helps save a little money gas-wise.

[Inspector 17]

Man, it sucks to be some of you. Regular is $2.09 here and premium (93) is $2.29. I think it might even be a few cents (3-8 cents) cheaper if I make the 8 mile drive south towards the highway.

[fastball]

Regular here is $1.95!

[Jamestwilliams]

Originally Posted by CamaroSpike23

you dont always get better mileage... most time you do.

say if you have a car that was rated for 87 and you put 93 in it all the time, you might not gain mpg. just like the misnomer that going with a higher octane nets you power...

well, not really. it does in a vehicle requiring premium when compared to the same vehicle running regular, but you arent really gaining power, just restoring it... or not limiting it.

and trust me detonation sucks.

Sorry I should have qualified my statement I didn't mean a car designed to run on 87 octane we are referring to the SS Camaro are we not, so it will get better mileage with 91 octane.

[zforce]

Originally Posted by djm96z28

I've been doing that on my '96 Z28 since it was new - never had a problem. I filled up with Premium (93), then at 1/2 tank fill up with mid grade (89). That averages out to 91 octane--which is considered premium grade. Helps save a little money gas-wise.

Octane rating is the amount of lubrication in the gas. The higher the octane rating the more lubiraction in the cumbustion chamber via the gasoline so the car can be tuned for more advanced from TDC, thus allowing the engine to run harder. the reason high compresion engines need higher octane is for the closer tolerance between parts. An old trick in making an engine run better at higher rpm was to advance the timing on an engine but the draw back was engine knocking and a hard engine to start so the trick was to adbance the timing enough to get good high rpm performance but still be able to start the car and avoid knocking when you turn the car off or at idling. The higher octane allowed us to advance the timing and not get knocking when the car was turned off. Now these days, the timing advancement is managed by the on board computer but the programming is dependant on the higher octane to protect the engine parts from knocking into each other.