WHile this was used a diesel fuel additive, in this case it was used to improve the lubricity of diesel causing less wear on the injector. Many people with older diesel engines add something to the ULSD fuel to provide more lubrication to the pump. Two cycle oil is common as are some other additives and MMO.
So if it does this in a diesel fuel test, what is it doing in your engine when added to the oil?
The lower the HFRR the better. (MMO INCREASED the HFRR, not lowered it as you want.)
Marvel Mystery Oil
Gas, Oil and Diesel fuel additive (NOT ULSD compliant, may damage
2007 and newer systems)
HFRR 678, 42 microns worse than baseline fuel.
320:1 ratio
10.4 oz/tank
$3.22/tank
So if it does this in a diesel fuel test, what is it doing in your engine when added to the oil?
The lower the HFRR the better. (MMO INCREASED the HFRR, not lowered it as you want.)
Marvel Mystery Oil
Gas, Oil and Diesel fuel additive (NOT ULSD compliant, may damage
2007 and newer systems)
HFRR 678, 42 microns worse than baseline fuel.
320:1 ratio
10.4 oz/tank
$3.22/tank