93 octane is the first choice, but 87 is fine, if you can't find 93 octane. optimum performance is achieve by 93 octane.
The 5.7L Hemi will run the same on 87 or 93 octane.
One litre of 93 Octane fuel weighs about 6.35 lbs. This weight may vary depending on the temperature, type and blend of the fuel.
You need 91 Octane, which you can use 93 octane and 89 octane mix. which is Premium and Mid grade fuel.
ask Harley Davidson bro
91 or 93
There is no better. If your car is designed to run on 87 octane then using 93 octane is a total waste of money. The higher octane will provide no more power, no better fuel economy, and is of no benefit to the engine whatsoever. In fact using a high octane fuel in an engine designed for 87 octane may actually cause hard starting. Use exactly the octane as recommended by the manufacturer of the vehicle. Saying that, if your car is designed to run on 93 octane then using 87 octane can be detrimental to the engine due to pre-detonation that will be caused by running the lower octane fuel. It depends on whether the manufacturer recommends the use of higher octane fuel or says it is mandatory. Most vehicles built in the last few years where 93 octane is recommended can run on 87 octane with a slight loss in power. The engine fuel management system will adjust for the lower octane and there will be no harm to the engine. The bottom line is to use exactly what the manufacture recommends.
it's a little better than 87 octane but not really high test gas, 91 and 93 octane is the high test.
91-93 octane premium
91/93 octane
All Subaru SVX engines were designed to run on premium fuel of 93 octane.
93 octane gasoline if it is not a diesel other wise it is a low sulfur diesel.