Which HM oil has most effective additive for seals

[Texan4Life]

Originally Posted By: sayjac
Don't know which has "the most", but I know my first choice, MaxLife Sythetic Blend, still $13.50 for a 5qt. jug at Wally.

Great value on a highly respected oil around here.


+1 and WM seems to throw it on sale like clock work. I never buy maxlife at full price

 

[TFB1]

Originally Posted By: mjoekingz28
Originally Posted By: SuperDave456

I ran A-Rx in this 20,000 miles ago, some MMO for the last 1,000 miles 2 OCI's ago.
Don't know when this leak started, but it was after all that.




Yeah, sometimes we do worse by doing too much. On my Saturn I read a lot about MMO soaks so tried to do one since consumption was a quart every 3000 miles.. Figured it was time before it got too bad and therefore too late to do anything.

After the soak, consumption would jump from a pint every 1500 to a quart every 1500 (depending where I was on the OCI). Now it has been, at times, higher than a quart every 1350. If only we could undo something now and again.


I had a friend who was big on MMO but for the last 30 years or so all I've put in any of my engines is oil, I figure a good oil will prevent problems or clean the engine if it's sludged... If it has high mileage(80+ Kmi) then it will get HM oil and I sleep soundly at night...

The only exception to above is a diesel Olds I had back in the late 80s... AFAIR this was before HM oils and it was leaking a steady stream from the rear main bearing(hey what you expect for $300?) so I dumped in some of Radiator Speciality Co's Bearin' Seal, leak stopped by next day... After it's first OC it started leaking again so it got a second dose, ran it four years after that and never needed another treatment...

 

[LeakySeals]

I think it depends on the car and its ailments. The only high mileage I havent tried is the maxlife full synthetic, can't find it. I too was a big MMO user for many years. I don't use it anymore.

 

[Alex38]

I've also had good luck with my leaky S10 with MaxLife (both the blend and full synthetic) and QS HM, though that was with SM formulations. I've not tried the SN yet.

 

[motorguy222]

Maxlife here is $17.88 for a 5qt. bottle and 4.93 for a quart and I lve in Ky.Valvolines home office is about 40 miles from where I live.It should be cheaper here than anywhere else.

The WPP version of Super Tech HM seems like it might be a good oil.I contacted WPP a short time ago and they sent me the following information.

10W-30

Physical Specifications
Procedure Test Min Max Typical Results
ASTM D4052 Specific Gravity at 60̊F NA NA 0.8714
ASTM D287 API Gravity NA NA 30.88
ASTM D445 Viscosity at 100̊C, cSt 9.3 ASTM D445 Viscosity at 40̊C, cSt NA NA 69.53
ASTM D2270 Viscosity Index NA NA 137
ASTM D1500 ASTM Color NA NA 2.5
ASTM D5293 Cold Cranking Simulator, cP NA 7000 6301
ASTM D5185 Zinc, % mass NA NA 0.085
ASTM D4951 Phosphorus, % mass 0.06 0.08 0.072
ASTM D5185 Calcium, % mass NA NA 0.214
ASTM D5185 Molybdenum, % mass NA NA 0.008
ASTM D5185 Boron, % mass NA NA 0.023
ASTM D4951 Sulfur, % mass NA 0.5 0.357
ASTM D5762 Nitrogen, % mass NA NA 0.102
ASTM D874 Sulfated Ash, % mass NA NA 0.92
TM
High Mileage 10W-30 API Performance SN/GF-5
• High Mileage engines lose engine compression as rings wear, gaskets become brittle and valves do not seal tightly increasing oil
consumption, reducing gas mileage and reducing overall engine performance.
• Super Tech High Mileage motor oil is formulated with a unique combination of premium base oils and an enhanced additive systemto
provide increased protection in higher mileage engines
• Super Tech High Mileage motor oil helps restore seal condition to reduce oil consumption and increases protection against high
temperature deposits and ring sticking helping your engine stay cleaner longer
• Compatible with leading conventional and high mileagemotor oils
• Meets or exceeds the latest North American vehicle warranty requirements API SN and previous API engines classifications SM, SL, SJ, SH
and ILSAC GF-3 and GF-4.

10W-40

Physical Specifications
Procedure Test Min Max Typical Results
ASTM D4052 Specific Gravity at 60̊F NA NA 0.8725
ASTM D287 API Gravity NA NA 30.68
ASTM D445 Viscosity at 100̊C, cSt 12.5 ASTM D445 Viscosity at 40̊C, cSt NA NA 109.70
ASTM D2270 Viscosity Index NA NA 150
ASTM D1500 ASTM Color NA NA 2.5
ASTM D5293 Cold Cranking Simulator, cP NA 7000 6757
ASTM D5185 Zinc, % mass NA NA 0.085
ASTM D4951 Phosphorus, % mass 0.06 NA 0.072
ASTM D5185 Calcium, % mass NA NA 0.214
ASTM D5185 Molybdenum, % mass NA NA 0.008
ASTM D5185 Boron, % mass NA NA 0.023
ASTM D4951 Sulfur, % mass NA NA 0.341
ASTM D5762 Nitrogen, % mass NA NA 0.102
ASTM D874 Sulfated Ash, % mass NA NA 0.92
TM
High Mileage 10W-40 API Performance SN
• High Mileage engines lose engine compression as rings wear, gaskets become brittle and valves do not seal tightly increasing oil
consumption, reducing gas mileage and reducing overall engine performance.
• Super Tech High Mileage motor oil is formulated with a unique combination of premium base oils and an enhanced additive systemto
provide increased protection in higher mileage engines
• Super Tech High Mileage motor oil helps restore seal condition to reduce oil consumption and increases protection against high
temperature deposits and ring sticking helping your engine stay cleaner longer
• Compatible with leading conventional and high mileagemotor oils
• Meets or exceeds the latest North American vehicle warranty requirements API SN and previous API engines classifications SM, SL, SJ, SH.

 

[67Customs]

Originally Posted By: buster
Valvoline started this non-sense, although they claim there is an actual "chemistry" behind it. I believe it's just an ester additive or maybe a higher level.
I wouldn't jump and call HM oils non-sense. My 2006 Town & Country w/90,000 miles consumed about a half a quart over the course of 5,000 miles while running Mobil 1 5w-20 or 0W-20. I switched to Quaker State HM 5w-20 and it hasn't consumed any since.

There might be another factor, but simply put, I switched to a HM oil and consumption stopped. I think it is at least worth talking about if the HM "part" of the equation worked.