The Ford Barn

Oldgearz · 07-28-2023, 03:15 PM

I always use 4 ounces to tank full of gas. Never use it in the oil as what is the point with modern oil. As to whether it does anything.....who knows. Why do you think they call it "Mystery" oil?

trulyvintage · 07-30-2023, 09:36 PM

I added a quart to my 90 gallon
auxiliary diesel fuel tank in the
bed of my F350 CC 7.3 OBS Dually
for the few folks.

Whatever contamination was in the
tank broke up & made it to my in
line fuel liter between the cross tank
and the front tank it gravity feeds into.

So I have been changing that more
frequently - the cartridge fuel filter
in the engine valley pan will be changed
soon as well.

Jim

07-28-2023, 03:15 PM	#1
Oldgearz Senior Member Join Date: Aug 2020 Location: Sagle, Idaho Posts: 374	Re: Marvel Mystery Olil I always use 4 ounces to tank full of gas. Never use it in the oil as what is the point with modern oil. As to whether it does anything.....who knows. Why do you think they call it "Mystery" oil?

07-30-2023, 09:36 PM	#2
trulyvintage Senior Member Join Date: May 2010 Location: Direct Enclosed Transport Since 2006 Posts: 4,854	Marvel Mystery Olil I added a quart to my 90 gallon auxiliary diesel fuel tank in the bed of my F350 CC 7.3 OBS Dually for the few folks. Whatever contamination was in the tank broke up & made it to my in line fuel liter between the cross tank and the front tank it gravity feeds into. So I have been changing that more frequently - the cartridge fuel filter in the engine valley pan will be changed soon as well. Jim __________________ Click Here To See Where I Am Today What My Actual Customers Say Click Here Click Here To See Vehicles I Have Hauled Last edited by trulyvintage; 07-30-2023 at 09:44 PM.