Seal conditioners, will they hurt?

[gunny1]

Heard someone say that seal conditioners in engines with seals in good condition would end up hurting the seals. Is this true? Another way to put it, would MaxLife hurt seals in good condition?

 

[TallPaul]

I don't see how they would hurt. Valvoline says Maxlife can be used in new and rebuilt engines. Seems to me, if it would hurt new seals, they would not say that.

 

[bruce381]

if you used the 100% seal sewll esters the seals would turn to taffy ond be riuned BUT most HM oils only use a few percent so mostly you are safe and they will clean and help dissolve gunk also.
bruce

 

[gunny1]

Good to hear that. I'm very interested in using MaxLife in a 383 Mopar.

 

[BobXRC]

I wonder if there is a "play" on words.

Seal conditioner versus seal sweller.

I've heard AutoRX called a conditioner, but not a sweller ???

 

[DINO_NO]

i remember molakule saying something about this.. but my searches are coming out empty

 

[gunny1]

Quote:

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I wonder if there is a "play" on words.

Seal conditioner versus seal sweller.

I've heard AutoRX called a conditioner, but not a sweller ???

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MaxLife indicates that it has seal conditioners. Correct?

 

[TallPaul]

From Valvoline.com Maxlife Page :

Quote:

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Special seal conditioners rejuvenate seals within the engine block to help prevent oil leaks that lead to sludge and deposits

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[gunny1]

Off Valvoline's web site:

"Valvoline MaxLife™ is the first motor oil specially formulated for higher mileage engines. Valvoline MaxLife™ is a blend of premium synthetic and conventional basestocks with a seal conditioning agent, extra cleaning agents, additional antiwear additives and friction modifiers."

I didn't realize that it's a blend. Looks exactly what I want to run in my 1971, big block engine. Thanks for all the replies!

 

[TallPaul]

Yes, it's a blend and the new labeling just hitting the stores says so. The MSDS says 12-22% PAO. Also, don't forget the 300 ppm moly. This seems to be a very well designed motor oil. I have 9 cases of Maxlife stashed in my cellar, but only about half of it is the SM with Moly. The older SL did not have the moly but still has the PAO. I heard here that when it first came out the synthetic component was ester.