Why does this come up every week?
lolGuys,
Does adding acetone to gas really help increase MPG.
I drive 42 mile round trip to work each day and gas is killing me.
That is completeThe best way to increase MPG is to put higher octane gas in your car which in the end may or may not save you money.
That is complete!!
Unless your car is tuned for higher octane gas, you are just p!ssing your money away by doing this.
Octane rating is the anti-knock capability of the gas, ONLY. It is not a measure of the potential energy it contains. Higher octane gas actually gives up it's energy less freely than lower octane gas, requiring higher combustion chamber pressures and temperatures to burn efficiently.
Running high-octane gas in an engine not tuned or designed for it will hurt its efficiency, and probably ruin the cats over time, as unburned fuel is sent out the exhaust.
Run the minimum octane rating needed to keep from knocking at WOT. High-mileage motors may require an octane rating higher than what they're originally rated for when new because of carbon buildup.
All this.... absolutely true.
You are probably right but that is assuming you are actually getting what you pay for. Personally, I am skeptical as to whether the 87 octane gas offered my local gas station really has an 87 octane rating. Nowadays, both the oil companies and gas stations are finding new ways to maximize profit. I actually ran 87 octane gas in the stang until it started running like crap and getting horrible gas mileage. After switching to 91 I noticed an average increase of 2 miles per gallon after switching to premium and I swear my car runs a lot smoother an quieter on premium. The increase may not be that much but in the end that equates to one extra day without having to fill up as well as a peace of mind that i'm not putting crap in my gas tank. Just my .02.
I drive 42 mile round trip to work each day and gas is killing me.
I only paid ~ $500 for my 2.3 Mustang...Keep the stangs, and get a 4-5 grand 4-banger to daily drive. My little 100k mile 2001 focus gets 28mpg with mixed driving.
My coupe in my sig got a little over 20 when I had it on a long trip, havnt really gotten to test her yet...the big gas saver with a stang is your right foot.
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