Recent Topics
GM dealer must install headlights?
by irv. 12/11/18 08:08 AM
Amsoil vs Schaeffers ATF
by Gebo. 12/11/18 07:10 AM
FORD S-MAX MOTOR OIL
by Maputocar. 12/11/18 02:54 AM
Rickman Metisse.
by Silk. 12/11/18 02:21 AM
UOA places
by OilUzer. 12/11/18 12:31 AM
question about kendall and schaeffer 15w40
by thejudges69. 12/10/18 09:39 PM
Apparently we made it on Amsoil?
by Marco620. 12/10/18 09:39 PM
Slight rust inside Carquest 85522
by A_User55555. 12/10/18 09:03 PM
Which AA battery brand is best?
by StevieC. 12/10/18 08:41 PM
HVAC-Evaporator Coil Question
by dkryan. 12/10/18 08:26 PM
EBAY $10 off $30 Members only
by Capt. 12/10/18 08:15 PM
Ran My First Full Road Marathon - Race Report!
by john_pifer. 12/10/18 07:33 PM
Atlas Pinnacle Pristine shingles
by gregk24. 12/10/18 07:24 PM
CZ-97B Warped Plastic Recoil Spring Guide Rod
by billt460. 12/10/18 07:19 PM
to buy or not to buy
by briggyman. 12/10/18 07:09 PM
Strange tire failure - w picture
by Cressida. 12/10/18 06:10 PM
Looking for a budget steam cleaner
by 2008wrx. 12/10/18 05:04 PM
Newest Members
TheBirdman, Kalalicious, Thundare, ScvttH, Capt
66648 Registered Users
Who's Online Now
88 registered members (aircooled, AdditiveOCD, 2004tdigls, aba4430, 2009Edge, AndyB, 10 invisible), 1,541 guests, and 33 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics294,907
Posts4,924,059
Members66,648
Most Online2,553
Oct 27th, 2018
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
Ester Base Stock vs Seal Conditioners in HM Oils? #4448876
07/03/17 09:06 PM
07/03/17 09:06 PM
Joined: Aug 2009
Posts: 99
San Diego, CA
gryffinwings Offline OP
gryffinwings  Offline OP
Joined: Aug 2009
Posts: 99
San Diego, CA
So I've been doing a lot of research into oils and want the best going into my engines weather new or old. But theoretical situation.

Mobil 1 HM or Valvoline HM

vs

Motul 8100 series oil (Has Esters, it's in the FAQ on the Motul site)

So I was reading about Ester based oils and they have property I found interesting, they actually cause seals to swell, not sure what they do to offset this to prevent damage to seals. So would Ester oils be more affective in stopping leaks do to seal shrinkage or minor damage than seal conditioners in High Mileage oil?


1987 Honda CRX Si
2015 BMW 320i
2016 Toyota Tundra
Re: Ester Base Stock vs Seal Conditioners in HM Oils? [Re: gryffinwings] #4448915
07/03/17 10:13 PM
07/03/17 10:13 PM
Joined: Jun 2011
Posts: 1,802
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,802
Crawfordville FL
I think the best value is the M1 HM if you get it in rebate.

I don't see that motul gets you anything over the M1 for normal service


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Ester Base Stock vs Seal Conditioners in HM Oils? [Re: gryffinwings] #4448940
07/03/17 10:45 PM
07/03/17 10:45 PM
Joined: Aug 2014
Posts: 1,453
Gulf Coast, MS
3800Series Offline
3800Series  Offline
Joined: Aug 2014
Posts: 1,453
Gulf Coast, MS
Ester has a lot of benefits as well. It has great cleaning properties but I would also recommend a HM oil.


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