nightcrawler Report post Posted January 22, 2020 What repercussions will there be when I accidentally put about 15gals of gasoline in my diesel tank? Tank had about 1/3 of 100 gal. tank when I sstarted, realized error and finished filling up with diesel. Share this post Link to post Share on other sites
wolfe10 Report post Posted January 22, 2020 To some degree depends on the engine/fuel injection system. Contact your engine manufacturer with your engine serial number and discuss it with them. Share this post Link to post Share on other sites
txiceman Report post Posted January 22, 2020 Gasoline has a much lower ignition point than diesel and with the high compression of a diesel, will be prone to knock and premature ignition. https://www.bellperformance.com/blog/accidentally-mixing-gasoline-and-diesel-fuel As little as 1%, that is 1 gallon in 100 gallons. You have about 15% gasoline. I would not start the engine and get it to a diesel shop to have the tank drained and the engine checked. Contact your engine manufacturer. Ken Share this post Link to post Share on other sites