Should I be putting regular unleaded fuel in my '07 LT or better?
Thread Starter
New Member
Joined: 10-12-07
Posts: 6
Likes: 0
From: Montreal, Canada
Should I be putting regular unleaded fuel in my '07 LT or better?
I want to keep my car in best condition possible, that means taking care of the engine. I have a 2007 Cobalt LT, should I be putting regular or premium fuel? Thanks guys
Senior Member
Joined: 05-16-06
Posts: 6,298
Likes: 0
From: CT
Regular. Anything else and you would be wasting your money.
Only cars with higher compression/forced induction need higher octane to prevent detonation.
If you are concerned with longevity, switch to a good synthetic oil for starters.
Only cars with higher compression/forced induction need higher octane to prevent detonation.
If you are concerned with longevity, switch to a good synthetic oil for starters.
Senior Member
Joined: 06-18-06
Posts: 4,883
Likes: 0
From: Madison,WI
like the post above said, the octane rating is just a rating of its resistance to detonation, it has nothing to do with how clean it is or how filtered it is
Senior Member
Joined: 06-18-06
Posts: 4,883
Likes: 0
From: Madison,WI
accually unless its call for it could do more harm then good, im sure it wouldnt hurt the car, but unless you need it, you leaving more unburnt fuel in the system
New Member
Joined: 06-08-07
Posts: 148
Likes: 0
From: Minneapolis, MN
It's true, higher octane is just a waste of money if your engine is tuned for regular unleaded. Though there might be a bit of truth to the Shell claim. There was that whole "top-tier" gas rating thing that GM and Shell participated in. Though it's not a result of the higher octane so much as an increase in cleaning agents in the fuel.
Senior Member
Joined: 01-05-06
Posts: 10,877
Likes: 2
From: East Brunswick, NJ
http://www.ecotecforum.com/forums/showthread.php?t=4539
Originally Posted by NJHK
3. Higher Octane means more power
Higher Rated Octane Gasoline alone will NOT gain you power. The octane rating in relation to your engine is all referring the resistance to detonation (knock). Detonation is a uncontrolled explosion in your combustion chamber (not like a normal controlled igniting of fuel).
Higher Octane also has nothing to do with flame speed.
Now being that high octane fuel more resistant to detonation occuring, you can yield power gains by advancing ignition timing or even possibly running at a leaner air to fuel ratio (of course this depends on the application and the condition of the engine or setup you're running).
Higher Rated Octane Gasoline alone will NOT gain you power. The octane rating in relation to your engine is all referring the resistance to detonation (knock). Detonation is a uncontrolled explosion in your combustion chamber (not like a normal controlled igniting of fuel).
Higher Octane also has nothing to do with flame speed.
Now being that high octane fuel more resistant to detonation occuring, you can yield power gains by advancing ignition timing or even possibly running at a leaner air to fuel ratio (of course this depends on the application and the condition of the engine or setup you're running).
Thread
Thread Starter
Forum
Replies
Last Post
Sl0wbaltSS
2.0L LNF Performance Tech
18
Nov 21, 2018 11:11 PM