Hey Guys have any of you fellow 31SS owners actually measured the range (distance) you can travel on a full tanks of fuel ? Mine has 496HOs and figure most of the running will be at the 40 - 50 MPH range not throttles mashed.

Steve

I checked mine once - included idling, cruising, full throttle, achieved 1.8mpg......full throttle was minimal......

I did an 88 mile trip on the Mississippi and cruised at 3200 RPM. I burned up 50 gals. for an average of 1.76 MPG. With twin 70 gal. tanks, I'd error on the side of caution and keep it to 200 miles.

1/3 to get there, 1/3 to get back, 1/3 reserve. Remember, I doubt you can get much more than 120 gallons into the tanks, boat tanks rarely fill completely.

I average 1.7 also even with totally different motors and crusing 3500-3700ish

I plan on refueling every 150 miles. This usually takes about 100gal.
I usually cruise at 3500RPM or about 50MPH.

Ive ran mine petty dry and got a 138 gallons in it on the trailer

I put exactly 70 gallons in each tank after running out both tanks on the water. The boat was on the trailer at fill up so it was a little more level than if in the water. BTW, mine is out of gas at a little under 1/4 tanks.

I stand corrected!

No problem Chris, proves your smarter to have never ran out of gas! I was impressed it was exactly 70 gallons in each tank. I just filled the tanks till I heard them gurgle.