Engine/Transmission (1998.5 - 2002) Marvel Mystery Oil????

[PSpychalski]

Have been using MMO in my tank and crank. Took Truck into Dealer for warranty work. Can't belive what he said "Good stuff to use for tank and crank, definitely recommend it" Said this with a wall of Diesel Additives sitting behind him. Like to hear from others on this take. Using MMO regularly.

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'02 5. 9HO 4X4 6SPD SLT Stock

 

[SCeslow]

I used MMO in my Ford 7. 3 diesel and I know that it seemed to make it run quieter and smoother. The milage seemed to also improve, but it was hard to tell. I haven't tried any in the Cummins yet. I think it adds lubricity to the fuel and also the detergent helps clean some carbon deposits from the injector spray tips.

 

[FourBarR]

havent used it in the cummins yet. use howes meaner. 347000kms. on original injection pump. have used mmo in aircraft radial engines for sticky valves. does work.

 

[J.Keith]

What kind of fuel/oil ratio do you use and how much is too much?

I've also used it in aircraft but not in a pickup.

 

[PSpychalski]

Winter use 8 oz. /10gl summer 6 oz/10.