Which do use in your engine?
- Thread starter davbell22602
- Start date
thats why my llifters got noisy! they were foamed up! 
Draenor
KILL ALL HUMANS!!!!
I dont use anything either.
Interesting, but I'd like to see a side by side comparison with the same brand/weight oil with and with out the additives.
Wow, How did I not see this one.
Interesting, but I'd like to see a side by side comparison with the same brand/weight oil with and with out the additives.
OldCracker29
I've been knocked down drug out and left for dead
Quaker State uses Slick 50 in their high mileage oil.
- Joined
- May 17, 2009
- Posts
- 57,295
- Reaction score
- 36
I don't currently use additives, and if that test is to be believed, I will continue to NOT.
Texas Jim
Texas..It's a Whole 'nuther Country
I always use Oil.
Thats what the owners manual says use.
That is what the engineers said use.
So... that is what I use.
In the past 50 years, I have tried all kinds of additives...none of them ever did much good that I could tell.
Years ago, I used to occasionally use Marvel Mystery Oil for a few days ... just before I was going to change the oil.
I had been told it was a real high detergent supplement, so I figured it would help keep the internals of the engine clean.
I don't know if it ever really helped anything, but I don't think it ever "HURT" anything either.
When I was putting together a standard transmission or putting gears in a rear end.... I would add just a few spoonfuls of STP.
That stuff was so slick and hard to get off of your hands... I figured it would be good to stick to the gear teeth.
I would put in in a rear end "ONLY" if it was "NOT" a P-Trac or a locker,
I figured it would screw up the clutches on a P-Trac.
Just my 2 cents worth.
Thats what the owners manual says use.
That is what the engineers said use.
So... that is what I use.
In the past 50 years, I have tried all kinds of additives...none of them ever did much good that I could tell.
Years ago, I used to occasionally use Marvel Mystery Oil for a few days ... just before I was going to change the oil.
I had been told it was a real high detergent supplement, so I figured it would help keep the internals of the engine clean.
I don't know if it ever really helped anything, but I don't think it ever "HURT" anything either.
When I was putting together a standard transmission or putting gears in a rear end.... I would add just a few spoonfuls of STP.
That stuff was so slick and hard to get off of your hands... I figured it would be good to stick to the gear teeth.
I would put in in a rear end "ONLY" if it was "NOT" a P-Trac or a locker,
I figured it would screw up the clutches on a P-Trac.
Just my 2 cents worth.
davbell22602
Stihl Chainsaw Man
I use marvel mystery oil to unlock engines that are siezed or locked up. Just pour little bit in each of the spark plug holes and let it sit without the plugs in the holes.
DarrenWS6
The original Ford guy around here
No additives at all here, trucks blood is pure Motorcraft. Best off with the modular engine, may change out the brake fluid and rear end oil with something different, Royal purple will be going in the axle, transfercase not sure.
zoogg
I'm NEW... What now?
- Joined
- May 19, 2010
- Posts
- 2
- Reaction score
- 0
I just use Motorcraft 5w20 semi-synthetic....in my F250 and the wife's Tucson....both run like the proverbial clock...ha
dirtyoldman
I'm now on Medicare,officially old.
Voted ''other'',no additives here.Castrol GTX 10W-30 only.
Jackson
BMFJ
I used slick 50 in my old 2.8 Blazer I had in college. 2 weeks later the engine shit the bed. I'll never use additive again. destroys your engine.
