If you read information and news about what type of fuel is best for a car, they all say use what the manufacturer recommends.
Well the manufacturer of my car claims that 87octane is fine for it, however when I use premium fuel, I get better gas mileage and no annoying knocking and pinging in the engine when I press on the accelerator.
2007-10-17 19:16:27 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Toyota Corolla , 4Cyl, Manual transmission , 2002 Year Model
2007-10-17 22:53:51 · update #1
Other benefits I've noticed with premium fuel.. Increased torque, and smoother operation of the engine
2007-10-17 22:57:06 · update #2
You need to state the year/make/model of car.
In reality, there is no performance improvement if you use a high octane gas if your doesn't require it. all octane is is resistance to pinging. so the higher the octane, the less ping. all cars have whats called a knock sensor, when it detects a ping, it will either retard or advance timing via settings in the car computer. an engine ping will make the timing retard, or not combust faster than where the position of the piston is.
If you are having knocking & pinging sounds, you might want to have your timing checked out, because if high octane gas is helping you, it tells me there's something else wrong.
the higher the octane, the slower the burn in the combustion chamber, if you car can't utilize a high octane gas, you actually can begin to create carbon buildup on the top side of the engine because the fuel isn't burning as fast and after the valve is closed and the piston is heading down already, any fuel left over will stick to the cylinder wall/valves. it might get burned off, but probably won't.
2007-10-17 19:23:59 · answer #1 · answered by Eric F 6 · 0⤊ 0⤋
This is heresy, but I've heard the hosts of CarTalk on NPR insist that buying premium fuel is a rip off.
2007-10-17 19:36:47 · answer #2 · answered by David L 1 · 0⤊ 0⤋
you guys are retard well not eric so much but higher octane gas will make ur car run better and yea posibly increase gas milage alittle im not sure about ur knockin it could be a number of things have it checked out by ur local mechanic not a big chain of places such as sullivan tire theyll rip u off
2007-10-17 20:16:45 · answer #3 · answered by Seth H 1 · 0⤊ 0⤋
regular fuel 2 twice a month fill ups the other times preium gas has more additives in it knocking is oil problem like pressure check oil more...ever two monthes check all fluids as rule..
(Oil,Battery fluid levels,Water or coolant,Powersteering,Brakes,Transmision) for insurued safety..
2007-10-17 19:48:02 · answer #4 · answered by ? 7 · 0⤊ 0⤋