Engine Oil Treatment

[toolaholic]

True story. I replaced timing cover gasket on my daughters 3.1v6 two years ago. In the summer it started making lifter noise at 115K. Ran risilone and synthetic Lucas with oil. Lifter is quieter but still makes noise. I changed oil on thanksgiving using risolone and oil no Lucas. 150 miles later I changed oil again to Lucas with oil and no risilone. Without Lucas the oil/risilone blend was really leaking out of bottom of timing cover gasket where it meets oil pan. Two years ago when I replaced gasket I RTVed between pan and cover. Lucas /oil blend w/o risolone brought leak to a minimum. Oil was black with only 150 miles on it. That risolone really cleans.

 

[gdocktor3]

99% sure 5w-30 is what’s recommended..

I’m not a thick oil believer either.

It is. Especially in New England during the cold months. Everyone knows that...

 

[gdocktor3]

Depending on what the climate is 5w-30 is preferred and 5w-30 is preferred in the light duty engines which I would consider the 5.0 7 5.7L to be in. maybe you should try reading the owners manual.


Now I was just wondering.....do you know anything about oil? What fly-by-night school did your degree in? And in what subject....basket weaving?

FYI: Your 10w doesn't do so good in cold weather when compared to 5 Winter. The 30 is the same, so when the vehicle is hot the 10w-30 & 5w-30 act the same. Calling someone at an oil place a *****? I guess the apple doesn't fall far from the tree, now does it?

I chose not to respond to that jibberish. Thanks

 

[dolfans]

Been a MMO user for years, but it will dissolve rubber gaskets and diaphragms on newer cars if you're not careful.
Switched to Lucas Oil treatment - seems to have helped with engine tapping and clicking noises. Seems alot like the ole STP oil treatment. Perhaps not quite as thick.

What would you consider new? I have a 2001 Dodge Durango with a 4.7 and was getting a ticking type sound on the bottom of the motor on the left side. A mechanic told me to use MMO and would be gone in a few hundred miles. It did go away and has not come back used a small amount and use it on every oil change

 

[bonneyman]

What would you consider new? I have a 2001 Dodge Durango with a 4.7 and was getting a ticking type sound on the bottom of the motor on the left side. A mechanic told me to use MMO and would be gone in a few hundred miles. It did go away and has not come back used a small amount and use it on every oil change

2 year old replacement carb on my Toyota truck.

 

[stikman56]

Some guys on here really need to study oil. Not at all what they at screaming about.

 

[ChrisLS8]

You won't catch me ever using oil treatments imo. That's a bandaid for a repair that can be far more costly down the road

 

[indy2door]

Quart of atf in there for about 100-150 miles and dump it. Then get yourself some rotella 15w-40. There no reason to run such low viscosity oil in an older GM 350. They like thicker oil period.

5W30 goes into my Chevy pu truck with 250k miles. Forget the heavy oils.

 

[kctyphoon]

This could be as simple as a worn or loose rocker arm nut no?? I had a worked 350 with roller rockers years ago and there was one nut that would always loosen up and the rocker arm would tap and rattle a little bit.. it was just the nut itself that was no good, not a lifter. After adjusting it a few times I finally just replaced the nut and that was that.

but yea, my first additive choice would probably be Lucas. They've been around forever and you gotta admit the old hand crank display with the gears inside was always pretty convincing and cool to play with.. lol. really your just guessing, so I don't think there's a wrong choice with an additive as long as it's compatible with the engine you're putting it in.
It certainly can't hurt.

Not trying to play mechanic, but this is exactly what my issue was and sounded like about ummm.. 22 years ago?? Lol. can't hurt to watch - esp if it's something so simple... I guess a bad lifter would sound the same though..

 

[stikman56]

5W30 goes into my Chevy pu truck with 250k miles. Forget the heavy oils.

As well as my ****** Gt with 301,000 miles.

 

[ChrisLS8]

This could be as simple as a worn or loose rocker arm nut no?? I had a worked 350 with roller rockers years ago and there was one nut that would always loosen up and the rocker arm would tap and rattle a little bit.. it was just the nut itself that was no good, not a lifter. After adjusting it a few times I finally just replaced the nut and that was that.

but yea, my first additive choice would probably be Lucas. They've been around forever and you gotta admit the old hand crank display with the gears inside was always pretty convincing and cool to play with.. lol. really your just guessing, so I don't think there's a wrong choice with an additive as long as it's compatible with the engine you're putting it in.
It certainly can't hurt.

Not trying to play mechanic, but this is exactly what my issue was and sounded like about ummm.. 22 years ago?? Lol. can't hurt to watch - esp if it's something so simple... I guess a bad lifter would sound the same though..

That Lucas additive causes aeration in oil which is no bueno for bearings. It lacks anti foam additives and is discussed a bit on bobistheoilguy forum

 

[kctyphoon]

That Lucas additive causes aeration in oil which is no bueno for bearings. It lacks anti foam additives and is discussed a bit on bobistheoilguy forum

Which is only a problem for high pressure oil systems, like those found in older hydraulically run Ford power-stroke diesel injection systems that run at what, 3,000 psi?? That's also why it says right on the bottle, not for use in older Ford powerstrokes. But yes, you are correct to a degree..