Bbb1 Posted January 29, 2022 Share Posted January 29, 2022 Good afternoon, just my experience but I've always had a tank switch to swap fuel tanks, on my 89 rw700 I cannot find one is this kinda two tanks tied together?? Thanks ahead of time Quote Link to comment https://www.bigmacktrucks.com/topic/69124-dual-tanks/ Share on other sites More sharing options...
0 D-Day Posted January 29, 2022 Share Posted January 29, 2022 Yes if you look at the front bottom of the fuel tank there should be a shut off valve same on both tanks with a fuel line connecting them 2 Quote Link to comment https://www.bigmacktrucks.com/topic/69124-dual-tanks/#findComment-488165 Share on other sites More sharing options...
0 Joey Mack Posted January 29, 2022 Share Posted January 29, 2022 Fuel crossover line... D-Day is right... jojo 1 Quote Link to comment https://www.bigmacktrucks.com/topic/69124-dual-tanks/#findComment-488166 Share on other sites More sharing options...
0 JoeH Posted February 1, 2022 Share Posted February 1, 2022 Yea. Mack trucks only draw from one tank. Usually passenger side. Crossover line allows fuel between the 2 tanks to self level. I drove a Peterbilt (Poorlybuilt) that had a switch.... You could suck from one tank and return to the other? Seemed kind of dumb to me. But what do I know? Quote Link to comment https://www.bigmacktrucks.com/topic/69124-dual-tanks/#findComment-488273 Share on other sites More sharing options...
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Bbb1
Good afternoon, just my experience but I've always had a tank switch to swap fuel tanks, on my 89 rw700 I cannot find one is this kinda two tanks tied together?? Thanks ahead of time
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