I have a 1998 Larson fish/ski. I don't know the fuel capacity. I'm guessing around 25-30 gals. Any ideas? <br /><br />I just got off the lake. I ran the boat about 25 miles and was amazed that it took so much gas . . . half a tank or more according to the gauge! The engine is a '98 Johnson...
Hello. I recently purchased a boat with a 1998 Johnson 150. What gas octane level should I use for boat motors (does it matter)? Also, do I mix the oil directly to the gas or is there a separate place on the engine to add oil?
