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Use Premium Gasoline for Maximum Performance

mrSHEiK124

mrSHEiK124

Lifer
Salesman said it took regular gas when I asked him about it, today I stop at the gas station to fill up and proceed to drop some f-bombs and the like. What exactly does "Maximum Performance" mean? More HP, more MPG, less wear on the engine; what exactly?
 
Fill in the blanks for me. You go to a gas station to fill up and start swearing. Im assuming this is because in the gas cap or elsewhere it says premium for maximum performance? Your post is missing a lot of important information. Read the manual and find out what the minimum recommended octance rating is.
 
Originally posted by: RGUN
Fill in the blanks for me. You go to a gas station to fill up and start swearing. Im assuming this is because in the gas cap or elsewhere it says premium for maximum performance? Your post is missing a lot of important information. Read the manual and find out what the minimum recommended octance rating is.
Click to expand...

Says so right on top of the gas cap. Yes I started to swear.
 
What car are you referring to?

Some cars can operate with regular but perform their best with premium.

ex. Cobalt SS
Cobalt SS and SS Supercharged engines will operate with 87 octane unleaded fuel; however, a noticeable power loss will be felt by the driver.
Click to expand...
 
First of all, shame on you for taking the salesman's word.

Second of all, what this means is that the engine's knock sensor is calibrated to retard engine timing and reduce knock when lower octane fuel is used. This results is less power available throughout the entire powerband. Typically this is on the order of 10-20 hp. Not enough to be critically important in everday driving.

ZV
 
It's not really a big deal anymore, is it? I mean Premium costs what, $.20/gallon more than regular? When regular used to cost $1/gallon it was a big difference, but now it's chump change.
 
yea my turbo car says to use premium everywhere but you can put regular in it just will be a power loss. the cost difference is negligible
 
It also means the car companies used premium gas to get their mpg and emissions ratings so they have to put the sticker on the car to maintain the fiction that the car is cleaner than it is.
 
Originally posted by: AnonymouseUser
It's not really a big deal anymore, is it? I mean Premium costs what, $.20/gallon more than regular? When regular used to cost $1/gallon it was a big difference, but now it's chump change.
Click to expand...

Sounds more like psychology to me...

20 cents per gallon difference times 15 gallons = 3 dollars per tank, regardless of the price. Perhaps as a percentage, but it's the same 3 dollars more that it used to be. I find it particularly funny that you'd say 20 cents isn't a significant difference, yet idiots will drive around the block to get to the gas station that's 2 cents less per gallon. And (I found this hilarious), at the Indian reservation gas station, the wait for self-serve was almost 15 minutes (back around Katrina time); but there was no line for full-serve. The price difference? 2 cents per gallon.
 
not necessary when the fuel isn't igniting prior to being compressed 87% or whatever your engine compresses it to. If the fuel works fine, then a higher octane rating isn't necessary, and you are just wasting money.
 
Originally posted by: jammur21
If the engine knocks when using regular - use premium

If it doesn't knock you're golden
Click to expand...

Many engines have knock sensors that will retard the timing to prevent knock and as a result will reduce performance. Hence the labels recommending premium fuel for maximum performance. You would think this would be painfully obvious.
 
Originally posted by: DrPizza
Originally posted by: AnonymouseUser
It's not really a big deal anymore, is it? I mean Premium costs what, $.20/gallon more than regular? When regular used to cost $1/gallon it was a big difference, but now it's chump change.
Click to expand...

Sounds more like psychology to me...

20 cents per gallon difference times 15 gallons = 3 dollars per tank, regardless of the price. Perhaps as a percentage, but it's the same 3 dollars more that it used to be. I find it particularly funny that you'd say 20 cents isn't a significant difference, yet idiots will drive around the block to get to the gas station that's 2 cents less per gallon. And (I found this hilarious), at the Indian reservation gas station, the wait for self-serve was almost 15 minutes (back around Katrina time); but there was no line for full-serve. The price difference? 2 cents per gallon.
Click to expand...

2 cents for full service? wow the few stations around where i live that have full service its at least 15 cents more a gallon for that service.
 
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