Recent Topics
Toyota 0W20 $2.95 + shipping YMMV
by Q451990 - 02/22/20 01:34 PM
Toyota Catalytic Converter (B2)
by MaximaGuy - 02/22/20 01:31 PM
The Camry lives!
by 53' Stude - 02/22/20 01:01 PM
Don't Try This at Home
by MrMoody - 02/22/20 12:11 PM
Fake Online Parts
by Gebo - 02/22/20 11:04 AM
Valvoline Premium Blue Restore questions
by Hubbs1982 - 02/22/20 09:54 AM
What is this
by Farnsworth - 02/22/20 09:08 AM
Confused with Battery Issue on Laptop
by BISCUT - 02/22/20 08:54 AM
Autel MP808K
by Nyquist - 02/22/20 08:54 AM
Pennzoil 400
by Snagglefoot - 02/22/20 08:41 AM
Smelly AC in F150's.
by Cujet - 02/22/20 08:39 AM
Finesse or brute force?
by AZjeff - 02/22/20 08:09 AM
Mount Fisher and the Stanley Cup
by Snagglefoot - 02/22/20 08:05 AM
Moly causing nickel wear in UOAs?
by claluja - 02/22/20 06:21 AM
Trekka, the only car made in New Zealand.
by Silk - 02/22/20 04:18 AM
Motorcraft FL-820s Video
by iunderpressure - 02/22/20 04:13 AM
Washing coolant down a storm drain?
by jharrison - 02/22/20 12:57 AM
storm door installation question
by FirstNissan - 02/22/20 12:13 AM
Kirkland VS M1
by A_Spruce - 02/21/20 11:24 PM
Newest Members
ManishHonda, Hubbs1982, AW4BYT, YOUSSEF, b3e3
70776 Registered Users
Who's Online Now
84 registered members (andyd, 53' Stude, 1WildPig, bdcardinal, bchannell, 10 invisible), 3,172 guests, and 17 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics301,787
Posts5,202,762
Members70,776
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
What’s in HM oil ? #5271120 11/18/19 06:03 PM
Joined: Aug 2011
Posts: 1,653
K
kstanf150 Online Content OP
OP Online Content
K
Joined: Aug 2011
Posts: 1,653
What makes a HM oil different from non HM oils ?
The voa on QS 5W-30 Synthetic vs QS 5W-30 HM is not a lot different other than the HM has a much larger amount of Boron compared to QSUD. So what’s the additive that makes it HM ?

888F8BFE-959D-4784-BDF3-C31D002637BB.jpeg8832F187-FCA8-4FE2-B805-071DD0090235.jpeg
Re: What’s in HM oil ? [Re: kstanf150] #5271130 11/18/19 06:13 PM
Joined: Aug 2019
Posts: 643
P
paoester Offline
Offline
P
Joined: Aug 2019
Posts: 643
HM oils usually have more seal conditioners for the old seals. Not much else of significance.
Another thread noted that HM oils might not be sold as much in the future as oils are now said to be "All-Mileage" for old and new engines. (Shell Rotella Gas Truck and Castrol Edge)

Re: What’s in HM oil ? [Re: paoester] #5271137 11/18/19 06:16 PM
Joined: Aug 2011
Posts: 1,653
K
kstanf150 Online Content OP
OP Online Content
K
Joined: Aug 2011
Posts: 1,653
Originally Posted by paoester
HM oils usually have more seal conditioners for the old seals. Not much else of significance.
Another thread noted that HM oils might not be sold as much in the future as oils are now said to be "All-Mileage" for old and new engines. (Shell Rotella Gas Truck and Castrol Edge)


Totally understand what your saying
But in the additives listed for both oils, the HM oil has nothing different than the Synthetic

Re: What’s in HM oil ? [Re: kstanf150] #5271190 11/18/19 07:08 PM
Joined: Aug 2019
Posts: 643
P
paoester Offline
Offline
P
Joined: Aug 2019
Posts: 643
Those oils have different base oils, conventional vs. synthetic, which by itself will trigger formulators to use different amounts and types of chemical additives, some of which do not show up on elemental ppm readings. Can't tell everything from this kind of VOA. Some clues are there. Not many though.
The need for HM oils isn't great due to use of so many silicone rubber seals that don't respond to much anyway.

Re: What’s in HM oil ? [Re: kstanf150] #5271383 11/18/19 10:50 PM
Joined: Aug 2011
Posts: 1,653
K
kstanf150 Online Content OP
OP Online Content
K
Joined: Aug 2011
Posts: 1,653
Paoester

Thanks for your feed back
Apparently with all the expert knowledge on this web site
We’ve stumped the panel on this question

Apparently nobody knows the magic elixir in HM oil

Re: What’s in HM oil ? [Re: kstanf150] #5271493 11/19/19 05:47 AM
Joined: Dec 2017
Posts: 877
6
69Torino Offline
Offline
6
Joined: Dec 2017
Posts: 877
Brake fluid. To swell the seals.








J/K.


1969 Ford Torino GT 390 Auto
2003 Mercury Marauder
1992 Mercury Capri Convertible
2000 Nissan Xterra
2008 Hyundai Santa Fe
1947 Ford 2N
1978 Honda XL75
Plus Other Stuff...
Re: What’s in HM oil ? [Re: kstanf150] #5271507 11/19/19 06:16 AM
Joined: Aug 2011
Posts: 1,653
K
kstanf150 Online Content OP
OP Online Content
K
Joined: Aug 2011
Posts: 1,653
Could be
Good guess
It’s kinda like hey Monty what’s behind door number 2
Nobody knows for sure !😳😳🥴🥴🥴

Re: What’s in HM oil ? [Re: kstanf150] #5271535 11/19/19 06:59 AM
Joined: Jul 2012
Posts: 3,708
A
alarmguy Offline
Offline
A
Joined: Jul 2012
Posts: 3,708
The difference is marketing :o)


14 Road King (current)
08 VStar 1300 Tourer
07 Suzuki C50
Re: What’s in HM oil ? [Re: kstanf150] #5271577 11/19/19 07:56 AM
Joined: Dec 2009
Posts: 5,498
C
CourierDriver Offline
Offline
C
Joined: Dec 2009
Posts: 5,498
Walmart can charge more??


I'd still like to have my 67 Beetle back....life was easy then..imho 2 quarts of oil roughly ,lol
Re: What’s in HM oil ? [Re: kstanf150] #5271591 11/19/19 08:18 AM
Joined: Feb 2009
Posts: 2,315
K
krismoriah72 Offline
Offline
K
Joined: Feb 2009
Posts: 2,315
There have been threads on this before.. from what i remember its the amount of detergents.. (thought process being that an older high mileage engine will have more deposits and varnishes).

And seal conditioners.. all oils have them.. I dont think anyone has ever said what the seal conditioner actually was..or if it even shows up on an oil analysis.

There have been claims that HM has alot more seal conditioners..but i dont think there is any way to prove it.

Re: What’s in HM oil ? [Re: CourierDriver] #5271621 11/19/19 08:59 AM
Joined: May 2002
Posts: 2,847
C
csandste Offline
Offline
C
Joined: May 2002
Posts: 2,847
Originally Posted by CourierDriver
Walmart can charge more??

Actually VWB and Maxlife as well as both flavors of ST syn are the same price off the shelf. They all get you big time for oil changes though. Think branding of oil is in a big shake up right now. Always afraid that my oil change place will declare VWB a semi syn and decline my stash of ten buck oil coupons.

Think that Maxlife has slightly more robust additive levels while HM ST is identical except for slightly more seal conditioners.

Last edited by csandste; 11/19/19 09:00 AM.

2017 Kia Soul Plus-- Valvoline Daily Protection 5w30+ a bit of Harvest King syn 5w30-- 75,000 miles
Re: What’s in HM oil ? [Re: kstanf150] #5271631 11/19/19 09:19 AM
Joined: Mar 2015
Posts: 7,533
B
bbhero Offline
Offline
B
Joined: Mar 2015
Posts: 7,533
Originally Posted by kstanf150
Originally Posted by paoester
HM oils usually have more seal conditioners for the old seals. Not much else of significance.
Another thread noted that HM oils might not be sold as much in the future as oils are now said to be "All-Mileage" for old and new engines. (Shell Rotella Gas Truck and Castrol Edge)


Totally understand what your saying
But in the additives listed for both oils, the HM oil has nothing different than the Synthetic



The seal conditioners are not going to show up on a VOA like the one pictured from PQIA.

To see those compounds it would take a much, much more expensive analysis test to be performed.


Nissan Altima 3.5 Coupe
Cam2 SuperproMax 5w30 Carquest r84356 Oil filter
"Treat your family like your friends and treat your friends like your family."
Re: What’s in HM oil ? [Re: 69Torino] #5271850 11/19/19 01:27 PM
Joined: Jul 2003
Posts: 296
S
Silver Offline
Offline
S
Joined: Jul 2003
Posts: 296
Originally Posted by 69Torino
Brake fluid. To swell the seals. J/K.


banana

Last edited by Silver; 11/19/19 01:28 PM.
Re: What’s in HM oil ? [Re: kstanf150] #5271955 11/19/19 03:21 PM
Joined: May 2019
Posts: 3,876
M
Mad_Hatter Offline
Offline
M
Joined: May 2019
Posts: 3,876
Originally Posted by kstanf150
Paoester

Thanks for your feed back
Apparently with all the expert knowledge on this web site
We’ve stumped the panel on this question

Apparently nobody knows the magic elixir in HM oil

Use your Google machine and search for "what's in a high mileage oil"... there's a wealth of information out there.

Spoiler Alert: it's more than just added amounts of FM's and SCA's.

Last edited by Mad_Hatter; 11/19/19 03:30 PM.
Re: What’s in HM oil ? [Re: paoester] #5271967 11/19/19 03:31 PM
Joined: May 2019
Posts: 3,876
M
Mad_Hatter Offline
Offline
M
Joined: May 2019
Posts: 3,876
Originally Posted by paoester
HM oils usually have more seal conditioners for the old seals. Not much else of significance.
Another thread noted that HM oils might not be sold as much in the future as oils are now said to be "All-Mileage" for old and new engines. (Shell Rotella Gas Truck and Castrol Edge)

???

That's not accurate. They may contain higher amounts of FM's or higher lvls of dispersants to combat blow by or have higher (double digits) TBN or a different detergent pkg to combat sludge... plus, when did lubes STOP being ok for use on any mileage of vehicle?

Last edited by Mad_Hatter; 11/19/19 03:37 PM.
Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™