How much Sea Foam in fuel tank in Case 160 excavator? [SOLVED]

Thanks for the question. It depends on whether you’re adding it for preventative/routine maintenance, or cleaning.

For preventative maintenance, add 1 ounce of Sea Foam per gallon of fuel. Guys who add it to every tank as preventative maintenance follow this ratio.

For occasional cleaning, add a high concentration of Sea Foam to a low tank of fuel – about 4 oz of Sea Foam per gallon of fuel. Adding 2-3 cans of Sea Foam to a low tank of fuel is a good way to use it in an excavator like yours. Do that about once a year.

Additionally, here’s a page on our site with some ideas for diesel applications: https://seafoamworks.com/diesel-engine-maintenance-basics/