Oil consumption - pao, diester or polyo's.

[Rev440]

I have a question on Oil consumption. What if my engine is consuming oil or the oil is going somewhere, "like on the ground from a seal leak" Lets say we're not going to fix the disappearance of oil by conventional means rather for fun and academic discussion, pick another "type" of oil...

What would I want to try available whether in oil or additive to find one that helps less oil disappear off the stick?

PAO or Diester or Polyolester?
I don't understand these types too much but know there are these types, are there straight unblended versions/brands of these that would help?

 

[Blue99]

A PAO or Ester based synthetic oil, by itself, will do nothing to help with consumption issues.

If the consumption is due to mechanical wear, the most basic approach is to buy a case of conventional 10W-40 on sale & check the oil level every day.

If it is due to stuck piston rings, or dirty & sludged up valve guides, and engine seals, a product like Auto-Rx can make a big difference by cleaning up and allowing these components to function normally.

Or take advantage of the cleaning ability of a high TBN conventional oil & run a 15w40 HDEO thru several short 500 to 1K miles oil change intervals.

 

[JohnBrowning]

Ester based fluid have much greater ability to clean due to their polar nature and natural solvency! So a diester or polyo-ester would have a greater inpact on seal cleaning etc.... I have seen ester based fluids case seal swelling but not so muchin a fully formulated product to case harm! My Dodge Dakota had the only rear seal on it's transmission that my service writer had not seen weep! The underside of my vechiles was completely spotless! The only difference I can think of was that my ATF Redline C+ was TPE based not PAO or G II or GIII. Traditonaly PAO's by them selfs did not case any seal swelling and M1 devoloped a reputation for casue leaks! I think it is also worth noteing that the origanal Amsoil was diester based not PAO!

It is the natural esters not to be confused with (synthetic esters) in Auto-Rx that do all the cleaning and seal reconditioning! Their are some motor oils that us plant derived esters like FUchs Titan 0W20.

P.S. If my vechile leaked I would either fixit or buy Walmart brand oil by the case!

 

[Rev440]

Hello:
I was asking the original question with two friends in mind, trying to pass on the education Im getting from being a part of BITOG.

To continue the quest of wanting to be an Oil Nerd, strolling through my local Auto parts store would it be beneficial to be able to walk up to the oil section and point out "that M1 is a PAO", "that George Foreman oil is a Diester", "That Amsoil is a PAO", "that uhh...Bitog Brew is a polyoester", "that stuff, uhh, we'll just stay away from that SJ junk"...

...gettit?!!

Regarding Mr. Haas page here...
http://63.240.161.99/motoroil/oildatasheets.html
Would it be beneficial to add below each brand/model of oil which type of oil they are whether it be a [PAO, Diester or Polyolester]?

Is there a known list that states which type of oil such brands are?

Regards
Joey

 

[nascarnation]

quote:

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Originally posted by Blue99:
A PAO or Ester based synthetic oil, by itself, will do nothing to help with consumption issues.

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When I went from Pennzoil 5w30 conventional to 0W40 Mobil 1 on a 97 Saturn SOHC with 110,000 miles the consumption went from 1000mi /qt to 3000mi /pint. No other changes.
(Yes I realize this is not cost effective but my daughter has the car @ college and it does not get the strict weekly maintenance checks that I do.
I've owned this car from new and used 5W30 -various name brand dinos with 4000 mi OCIs.)


On the current trial I'm using GC 0W30

and having similar results to the Mobil.

On the Saturnfans board another guy got even better improvement with Rotella 5W40, so that's my next trial followed by Mobil 1 Truck and SUV 5w40.

Just my 2 cents.