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Old 09 Jan 2008, 06:16 pm
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Default why is it important to use premium gas in the acura tl?

why is it important to use premium gas in the acura tl?
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Old 09 Jan 2008, 06:31 pm
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The engine compression ratio is higher than vehicles running on regular. Premium gas has more anti knocking agents in it - this reduces the the possiblity of pre ignition of the gas in the cylinder, causing engine knocking (or pinging). The lower octane level will not damage the engine in the short run, but will definately shorten the engine life if used regularly.Stick with the gas requirement in your owners manual or on the gas filler cap.
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Old 09 Jan 2008, 06:46 pm
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The Acura TL comes with high compression engine that requires premium fuel.Premium fuel contains more octane than regular fuel. This is to retard the combustion process i.e. the piston can compress the fuel/air mixture further before it ignites.If you use regular fuel then 2 disruptive occurrences will be noticed:1) Engine knocking: Since the regular gas will ignite prior to the piston compressing it completely i.e. (hits bottom dead center) the explosion will "knock" against the piston. This can damage your piston, crankshaft, spark plug and cylinder.2) Carbon deposit: Premium gas burns cleaner. Regular gas will leave excessive carbon deposits because your engine control unit (ECU) is programmed for premium, not regular hence it operates with certain parameters for the cams. Carbon deposits not only harm your engine but will also release more than the allowed harmful emissions that pollute the environment.Besides the TL owner's manuals say that it is "required" not "recommended" to use premium gasoline.
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Old 09 Jan 2008, 07:01 pm
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post above, premium doesn't burn cleaner. It's actually more prone to leaving deposits at colder temperatures and lower pressures. yes it is important because it is a higher compression engine. Thus it stresses the fuel more. And to prevent preignition it requires a higer octane that resists detonation at higher temperatures and pressures.Now you could put regular 87 in it and really wouldn't damage your engine because it has a knock sensor. It can detect the signs of knock and retard the timing to a safe level. But in retarding the timing your engine is no longer optimizing at it's desired efficiency. You lose power and put out more emissions. So you have to use more gas just to get the same power. So in any effort to save money was foiled. You end up losing money.
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Old 09 Jan 2008, 07:16 pm
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Using high-octane gas in a car designed for regular accomplishes little except more rapid combustion of your money. Some refuse to believe this, claiming, for example, that premium gives the family Toyota better mileage or more power. These people are in dreamland. Others say premium is purer or contains detergents that will cleanse your engine of uncouth deposits. Some automotive types claim that using premium in a car designed for regular will make the engine dirtier--something about deposits on the back side of the intake valves. I've also heard that slower-burning high-octane gas produces less power when used in ordinary cars.
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Old 09 Jan 2008, 07:31 pm
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It's not imperative. I drive a TL Type-S, recommended premium. I bought it new and have always used regular. I have 74,000 miles on my car now and it runs great. It passed NJ inspection, gets regular service and checks by professional mechanics... everything is great! Plugs have never been changed and my current highway mileage is 27mpg. You don't need high-test gas, unless you are professionally racing or have modifications made to your engine for more horsepower.
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Old 09 Jan 2008, 07:46 pm
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All gasolines has the same BTUs the Octane rating is to say the fuel is less sensitive to predetonation due to heat and pressure. The cleaner fuel crap is just an urban legend. The anti knock sensor will adjust the engine. I have a car that use the cheapest gas around, does not over heat, gives me 30 MPG and has a V6. Is an 03 Impala. If you feel better by using premium, go ahead. No harm on that, except your wallet.My brother has a TL and uses the cheapest gas around, so far is running good.
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Old 09 Jan 2008, 08:01 pm
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It's based on my personal experience, although with different brands, the principles are the same. I always get lower mileage with premium gas, the engine is more agile, more responsive. The thing is that premium fuel is simply more effective, think of the energy drink:-). The engine gets more energy from the fuel that's injected into cylinders.I drive a small car (Mazda 3, 1.6 automatic, it's a European model) so better responsivness is very important. I always go for Shell V-power 95 (that's 91 octane in US ratings), occasionally, I put in 100 octanes V-power (95 US). The car's flying:-)But it's not just about power gains. Premium fuels contain additives that reduce frictions, helps burning etc. That keeps the engine cleaner.If using premium all the time is too expensive, you can freely mix regular and premium, or make up a shedule and alternate.
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