Hey guys I’ve got a 1984 Suzuki Alt 125 I just picked up, want to do an oil change but can’t find out how much oil to put in it. It says use 10w-40 on the engine but is that the best oil for the engine? It’s pretty worn out but still runs strong.

 

Welcome to the forums.

I believe it says to add 1.1 quarts, but I've also seen where people said it took 1.3 with a new filter.