- First Name
- Brice
- Joined
- Jul 6, 2020
- Threads
- 72
- Messages
- 1,535
- Reaction score
- 4,426
- Location
- Louisville, KY
- Vehicle(s)
- 2021 Bronco
- Your Bronco Model
- Badlands
- Thread starter
- #1
I'm late to the game on adding marvel mystery oil to everything. Started using it in my fuel a few months ago and added some to my crank case prior to changing the oil last time. Granted I'm using it in a 2003 with 240k miles, but I'm curious if there is any advantages or disadvantages to using it in a modern engine? Looks like the have an "ultimate" version for modern engines. Would you use it in your new Bronco or just stick to fresh gas and synthetic oil?
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