What type of fuel for a suzuki 4wd quad Does it have to be premixed?

Answer 1

Your question contained no year or model, so the answer will be pretty general. The fuel is going to be regular gasoline. The pre-mix is determined by a number of factors.

Is the engine a 2-stroke or a 4-stroke?

4-strokes require no pre-mix. Use only regular motor oil in the crankcase.

2-strokes require 2-cycle oil to be added to the gasoline before it reaches the cylinder(s). Some 2-cycle engines require you to mix the gasoline and 2-cycle oil in a gas can before you pour it into the gas tank. Some have separate tanks; one for gasoline, one for 2-cycle oil. This last type allows the refueler to pour straight gas in any amount into the gas tank and any amount of 2-cycle oil in the oil reservoir -- the engine will mix them together automatically in the proper amount.

Check your user manual to see what type of engine you have. If you run a 2-cycle engine without 2-cycle oil, it will destroy the engine.