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i am guessing you should use premium gas for a Chrysler 300. Regular is ok unless you have a SRT8.
" regular " unleaded , 87 octane
Use what the manual tells you....regular gas.
91 is low premium if ur engine takes 93-high premium it should be ok.
Diesel
The good thing about the x3 is that it's a more reliable BMW than other BMWs. You can have the option of using regular or premium without damaging it. But even tho regular is cheaper, you get less miles to the gallon than premium. So it pretty much balances out. It's a better idea to use premium.
BMW always recommends using 98 RON petrol (gas). Which is premium unleaded.
BMW only takes gas rated at octane 91 or higher, and that is Premium at the gas station.
Before buying a snowmobile, you should consider the costs and the brand and also the manufacturer.
My trans am gt 1994 with a 5.7 recomends premium fuel. ive ran the car with both regular and premium . It runs fine with regular but you can definetly feel the difference. it just runs stronger with premium and is probably better for the injectors
Regular unleaded is the recommended fuel for a 1999 Jeep Grand Cherokee.
In order to preserve the motor in your CTS you should put only premium gas in it.