Sure, but you will likely see no benefit from it. It wont harm it but it might run less peppy then without it. Higher octaine simply burns slower. High performance engines need it to slow down combustion to reduce detonation.
91 is low premium if ur engine takes 93-high premium it should be ok.
If you're asking what will happen if you put gasoline in a diesel engine, the engine will be destroyed if you run it on gasoline.
Yes, you can. Premium is recommended, but not required. If you intend to keep the car for a long period of time, the engine will operate better with premium.
Yes, but there is no need to do so.
Why you want to do that??? if you like to do for your funny works, you can do it.
premium
IN THE BRAKE MASTER CYLINDER RESERVOIR.
Most likely a clogged or plugged gas tank vent hose.
I have had a good experiance with BP or Shell (Both Regular). I just put in some gasoline from a station called Raceway and my MPG has dropped BIG TIME!! Hope this helps.
BMW's as a rule prefer Premium gasoline. Never put the cheapest kind in, unless of course you don't mind not getting the maximum performance and longevity out of your engine.
" regular ' unleaded , 87 octane
According to the 2001 Ford F-150 Owner Guide ( 5W-20 , certified for gasoline engines )