An engine of that era would run better on leaded gas.
Unleaded....mixture is 50:1 with 2cycle oil in 2 a stroke engine. 4 strokes do not require you to mix fuel
Regular unleaded.Regular unleaded.
They run fine on 87 Regular Unleaded
No, it will mess the engine up
For a 1991 Mercury Grand Marquis : " regular " unleaded gasoline , 87 octane is used for both the 5.0 and 5.8
" regular " unleaded , 87 octane ( according to the Owner Guide )
Unleaded Gasoline, Diesel, Ethanol, or Natural Gas depending on the engine.
Regular unleaded gasoline.
If the van has a diesel engine, then you MUST use diesel fuel. Unleaded gasoline will destroy a diesel engine. Diesel fuel is also used as a lubricant in a diesel engine. The use of any other fuel except diesel will result in serious damage. If you have put unleaded in your diesel, do not start or drive this vehicle until you drain the tank and change all the fuel filters.If the van has a diesel engine, then you MUST use diesel fuel. Unleaded gasoline will destroy a diesel engine. Diesel fuel is also used as a lubricant in a diesel engine. The use of any other fuel except diesel will result in serious damage. If you have put unleaded in your diesel, do not start or drive this vehicle until you drain the tank and change all the fuel filters.
you can use regular unleaded, just add an octane boost every couple times you fill up
Unleaded gasoline is regular gasoline. Lead used to be added to gasoline to prevent engine knocking but the practice has been banned in most developed countries. 2nd Answer: There are some engines, a lot of them not in cars, that are made to use regular gasoline. They are designed so that the lead in regular old gasoline will build up on certain moving parts, and keep them sealed against engine pressures. Unleaded gas is not good for this type of engine, at all.
Unleaded fuel should always be used in a modern engine. Leaded fuel causes a detrimental buildup that will quickly destroy your bike.