Oil type for troy bilt weeder 4 cycle model # TB575SS

Non detergent, straight 30 weight.

Sometimes can be found labeled as "Tractor Oil". Otherwise, any premium 10w-30 I find in my experience with these stout 4-cycles to be just fine!

If breaking in engine from new, out of the box? Change oil with 10 hours on the clock with engine is still warm. You only need 3.2 Oz. to fill the crankcase!

So pour slowly. It is full when the trimmer is placed on a level workbench surface with the trimmer head dangling off the end. There is going to be a slight forward tilt away from the oil fill plug. Fill only until it just literally comes to the bottom of the oil fill plug with the trimmer laying flat on your workbench.

*DO NOT FILL IT UP WHILE HOLDING IT VERTICALLY!*

(I warned you. ;D )

Also at this time, clean and re-oil air filter and check your manual - these trimmers after break in require a valve lash adjustment. .005" @ TDC if my memory is correct....The manual I *think* states anywhere from .003 ~ .007 to be within spec. After break in, only need to adjust valves seasonaly. Regular oil changes @ 20~25 hours of run-time keeps them happy.

Are you asking about the oil for the oil compartment or are you asking what to mix with the gasoline. Four stroke motors do not require the addition of oil. Regular unleaded is fine. Most trimmers come with a small bottle of oil, but the manufacturer's site has all of that information available whenever you need it :)

Make sure that the motor is on a .level surface or positioned so you can see the window in the oil compartment and add oil slowly to make sure you don't overfill. The fill line is marked; it's in the center of the round window.