OIL TYPE FOR A YARDMAN 6.5 HP - Mtd Yard - Man 160cc, 21" Self - Propelled Lawn Mower

Should be a plug on right side engine almost bottom of engine.

Its to stop the dust blocking the filter. The filter should be cleaned with petrol every 4 to 6 months to remove the dust & oil build up, cleaned in/with petrol and re-oiled. Its also good to clean the filter housing each time you clean the filter

clutch slipery

go to https://houzz.com/ type in mower stuck in gear they will give you the answer

The manual will call for 30 weight, but 10w30 works just fine. Be careful to not overfill the crankcase. Your machine will take 16 - 18 oz's when the crankcase is empty.

Tim

SAE 30 for the oil
48 ounces is about right, but I would be sure to check the dipstick as you are filling and not just dump a full 48 in.

Put in about 20 oz. of SAE 30HD oil. I recommend synthetic, and if you use that, you can use a 10W-30 oil. Remember, a quart bottle is 32 ounces, so DON'T overfill.

SAE 30 only; if using conventional oil. I recommend using synthetic engine oil. If you go with synthetic, you can use a multi-viscosity oil like 10W-30, but only use staight SAE 30 if using conventional oil. Many benefits to using synthetic oil. It cleans the engine as it runs, it provides superior protection and helps cool the engine parts better, and it almost assures you 100% that your engine won't fail because of the type of oil used.

change oil every 25 hours, but for the cost of a qt of oil, i change mine more often.