Do you guys run premium fuel? What brand?Quote:
Originally Posted by 97t4rnr
How much Seafoam did you use and what did you do with it?
Did you track your fuel mileage before and after?
Printable View
Do you guys run premium fuel? What brand?Quote:
Originally Posted by 97t4rnr
How much Seafoam did you use and what did you do with it?
Did you track your fuel mileage before and after?
I actually run what the yota calls for. Regular Unleaded. I need to start running Cheveron only in my engines But is there a better brand than that? I heard it was a waist to run with a higher octane. Is this true?
afterwards you may want to change out your sparkplugs, as the breakup of all that carbon build up may foul your plugs
Yeah I was going to do all of this and then change my oil,plugs,wires etc...so you are saying that it will smoke a lot when I crank it?
I run regular unleaded, as does my dad.Quote:
Originally Posted by MTL_4runner
I followed the directions on the can. Had the predicted white smoke and near stall with 2nd round. Also added a can to the gas tank. Did start easier, but no improvement in mileage.
As for tracking mileage, I track it at every fill up. I typically fill up with Chevron or Marathon stations.
Not entirely. There are a few brands which run additive cleaners in their gas and thus they add progressively more cleaner the higher the octane goes. The cleaner and octane are added to the gas as it is pumped into the main tank at the gas station (the trucks don't have seperate compartments for each type of gas, instead they mix it onsite depending on the grade needed). Just because you have a higher octane rating also doesn't mean you have more cleaners in the gas.Quote:
Originally Posted by 97t4rnr
It is possible your engine may already be clean thus no improvement was seen. Chevron gas especially is known for having additional cleaners added to the gas. If you're getting 21-23 MPG highway, you're probably running as efficiently as you could and your engine is probably quite clean.Quote:
Originally Posted by 97t4rnr
Putting high octane fuel in a non hi-performance engine is a waste of money. The more octane a fuel has means that it is much harder to burn to release the energy contained in it. This is why higher octane fuels are used in race engines and piston engine aircraft. A standard 22re is not going to run any better on high octane fuel unless you have raised the compression ratio by head work or other engine power adders. I have worked in the automotive industry for over 12 years and read many articles on this debate to all of which show carbon fouled spark plugs from incomplete burn on a basic engine. Sorry for the rambling, just hear this alot and want to put in my 2 cents.
It's true that most "regular" engines probably can't take advantage of high-octane fuel, but your description of why that is not particularly accurate. An octane rating is a rating of how resistant a fuel is to pre-ignition brought on by heated compressed air. Higher octane fuels auto-ignite at higher temperatures, meaning that using a higher octane fuel allows for a higher compression ratio in an engine or forced induction. "How hard it is to burn" is somewhat simplistic, because low and high octane fuels are quite easy to ignite with a spark plug.Quote:
Originally Posted by partsman93274
True, because a higher compression ratio allows for a more efficient burn (and more power), but also requires a higher octane fuel so the engine doesn't have problems with pre-ignition.Quote:
Originally Posted by partsman93274
Premium fuel will not cause sparks plugs to foul in an engine that doesn't need it. All it will do is lighten your wallet more than necessary.Quote:
Originally Posted by partsman93274