Have heard both sides of this all over the internet.
Use 229.5 mercedes oil, that only goes up to 5w40 (the manual doesn't mention anything about 229.5 rating though)
Or go by the manual and use 15W40 or 15W50 for the hot climate I drive in.
Thoughts? It's a small three cylinder engine that's often compared to a boat's outboard motor.
I'm on the gulf coast in Houston, and the coldest it has ever been on record is 5F which is the lowest for 15W oil according to the manual that I should use.
Use 229.5 mercedes oil, that only goes up to 5w40 (the manual doesn't mention anything about 229.5 rating though)
Or go by the manual and use 15W40 or 15W50 for the hot climate I drive in.
Thoughts? It's a small three cylinder engine that's often compared to a boat's outboard motor.
I'm on the gulf coast in Houston, and the coldest it has ever been on record is 5F which is the lowest for 15W oil according to the manual that I should use.