does anyone have any hard data, or could take an educated guess on how much a 99 sonic burns per hour, while cruising.

Say 40mph at 3800rpm

I was told from the previous owner that I have a 65 gallon tank.

Can anyone confirm thats what sonic used in 99?

Lord Stanley, bstasch from the previous forum. I have a98 prowler and I have been told a 103 gallon tank. Do know, I never let it go below a 1/4 and only add 50 gallons at a time.

hmm??? If you have a 98 and I have a 99... Was there an option for a smaller gas tank???

2001, 260 prowler. 102 gal fuel tank. Quote:Mercury marine
34 gal hr @5000 rpm. Im not sure what it uses at cruise speed.