Can I put premium gas in my 2003 Silverado ?
I have a 03 Silverado 4.8 liter. I've always put the cheapest type of gas and I'm wondering is it ok if I start putting premium?
- WindowphobeLv 71 year ago
It's a better buy than those damnfool LED lights.
- Anonymous1 year ago
Oh yes. You can put in Supreme Premium Super if it costs MORE.
Go for it. You won't notice any difference. Except you will be short on BEER money.
- John AldenLv 71 year ago
It is, but it would be a waste of money.
- oklatomLv 71 year ago
Can you? Sure. But all it will do is waste money, You should always use the grade gas that your owner's manual say's to use.
- How do you think about the answers? You can sign in to vote the answer.
- River EuphratesLv 71 year ago
You *can*, but you will get no benefit.
Only the 6.2L V8 engine (VIN Code 2) requires anything other than regular unleaded gasoline with a posted octane rating of 87 or higher.
Both my 1100cc '04 Honda Shadow Spirit and my '65 Mustang 289 V8 run like crap on regular gas - but it's because they are both carbureted. Plus or premium helps (or just adding octane boost to regular gas).
- thebax2006Lv 71 year ago
If you've been running 87 octane in the motor with out it pinging using higher octane gas is a waste of money. Lower octane burns better.Source(s): Mitsubishi Master Tech
- boLv 71 year ago
you can but why pay extra if its not necessary
- Jay PLv 71 year ago
You can safely use any higher octane unleaded fuel than what is specified by the manufacturer at any time. What you should not do is go below that specified octane fuel rating.
However, adding a higher than called for octane fuel is a waste of money for most engines as there is no real world benefit of doing that.
- CarsonLv 61 year ago
Yes. If the the engine isn't pinging when under acceleration or under load it won't make much difference.