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Only if the engine manufacture recommends 93 octane which is highly unlikely. Most likely the manufacture recommends 87 octane and that is what you should use. Using a higher octane is a waste of money and will provide no benefit whatsoever.
for any Volkswagen gas engine do not use anything lower than a 91 octane rating.
No. If your car runs well on a lower octane gasoline (i.e. no engine pinging or knocking), then putting a higher octane gas in your tank is just wasting money...
Most small engines are designed to run on regular unleaded gasoline; the higher octane premium gasoline may eventually be harmful to the engine.
I own an 02 Highlander, and sometimes I get a knock when engine is under load, like going up a hill or when accelerating. This is engine knock caused by low octane gas. When I use a mid grade or premium octane, I do not get the sound at all. .
A four cycle engine does not use a gas/oil mixture. The oil is in the crankcase and the gas goes in the gas tank. If you put oil in the gas on a 4 cycle engine it will run poorly and smoke a lot.
that is your prefference,it should run fine on 87 octane. but higher octane will not hurt engine.
A gas only engine has a spout where oil is added to the engine. If there is no spout, then it is a gas/oil engine. FYI - gas only engine is a four-stroke (four-cycle) engine and the gas/oil engine is two-stroke (two-cycle).
At least 91 Octane. The higher octane is to prevent engine knock- esp susceptible b/c of the turbocharged engine.
The owners manual says that higher octane is preferred for best engine performance, but it also says that 87 octane can be used without damage to the engine. I've been using a mixure of 87 and 89 octane and do not hear any engine-knock or pinging. The gas mileage probably would be better if 91 octane was used, but I haven't run a test on that aspect yet.
Not unless the engine using it was specifically designed for it. Gas mileage takes many things into consideration, and if a car is designed to use standard octane gas, the use of high octane gas will not increase the car's mileage - it is just a way of figuratively blowing dollar bills out of the tailpipe.
If your car says it requires gasoline with a specific octane rating ... Well, it will probably operate with a lower octane rating, but it will be very bad for the engine and for your gas mileage. However, you don't need to use an octane rating any higher than your engine specifies, and there's likely no real benefit to doing so.