2007-01-31 08:47:19 · 10 answers · asked by dris28 1 in Cars & Transportation ➔ Maintenance & Repairs
Your wallet gets a little thinner. Nothing more.
2007-01-31 09:46:36 · answer #1 · answered by Nomadd 7 · 0⤊ 0⤋
Nothing. The plus only means the octane rating is higher, which means the fuel can withstand higher compression in the engine without combustion. For most engines on the road, regular unleaded has a high enough octane rating to prevent the premature combustion.
Some engines have a higher compression to get more power out of the engine. In this case, regular fuel ignites before the pistons reach top dead center. So a higher octane fuel, or a fuel that can withstand higher pressure, is used to prevent this problem.
Some answers say there will be a gain in performance. It simply isn't true. The heating power in gasoline is not changed by the octane rating. In fact, having too high of an octane rating will actually decrease performance, because it does not combust properly at lower temperatures. This does not cause the engine run hotter as another answer claims.
2007-01-31 08:53:27 · answer #2 · answered by kdog 4 · 0⤊ 0⤋
The car will run hotter because plus gas is harder to burn - more resistance to detonation (knock). High performance engines with seriously high compression need a gas that won't ignite as easily - so they use 91+ octane. So running 91+ octane in a car that requires 87 can actually give you worse MPG.
Most passenger cars today run on 87 octane and will just fine. New'er cars with knock sensors can actually increase the spark timing to take a small advantage from higher octane - but if you save $$$ - that is the question.
The best thing you can do for your car is dump some fuel injector cleaner every 3,000 miles - Chevron w/ Techron.
2007-01-31 08:56:39 · answer #3 · answered by Paul 2 · 0⤊ 2⤋
theres really know such thing as a regular gas car,cars can take all three rated gases even the newer cars that say premium only,they just print it on there becouse it makes the car get better gas milage and slightly(very slightly)prolongs engine life.all it is is a higher octane cleaner gas just regular gas will still run any car
2007-01-31 13:45:18 · answer #4 · answered by jeremy r 1 · 0⤊ 0⤋
Nothing except you're probably wasting an extra 10 cents a gallon. Unless of course your car is knocking and pinging. Tit may help that, but it's just a waste of money.
Don't try this at home. Your results will be the same.
2007-01-31 08:53:53 · answer #5 · answered by Lemar J 6 · 1⤊ 1⤋
you will have higher octane , is a cleaner more refined fuel , you will get higher gas mileage , less knock and ping and engine will be 7 degrees cooler for every octane number higher , engine will burn cleaner
2007-01-31 09:07:22 · answer #6 · answered by merlinswrench 2 · 0⤊ 0⤋
You've wasted some money unnecessarily. But it won't hurt anything, the computer will just compensate for the higher octane and everything will continue to hum along.
2007-01-31 08:52:39 · answer #7 · answered by oklatom 7 · 3⤊ 1⤋
In reality nothing you'll really be able to notice. There could be minimal performance gains but not to the extent it would be worth the extra money. Nothing at all negative.
2007-01-31 08:51:46 · answer #8 · answered by David T 1 · 2⤊ 1⤋
What is plus gas?
2007-01-31 08:50:51 · answer #9 · answered by aanusze1 3 · 1⤊ 2⤋
Your wallet will empty out faster.
2007-01-31 08:54:33 · answer #10 · answered by PRS 6 · 1⤊ 1⤋