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#4453865 - 07/08/17 10:26 PM Best High Mileage Synthetic
bigj_16 Offline


Registered: 07/03/17
Posts: 1267
Loc: Douglas County, Colorado
I'd like to get some thoughts on which HM synthetic(readily available) people think is the best and why?

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#4453869 - 07/08/17 10:27 PM Re: Best High Mileage Synthetic [Re: bigj_16]
TheKracken Offline


Registered: 04/18/17
Posts: 515
Loc: Fort Worth TX
PPHM because I like yellow bottles and have had a lot of success with pennzoil.
_________________________
2011 Prius 96k miles RLI 5w20
97 Toy T100 4x4: amsoil 0w20 242k Miles
04 Toy Sienna awd: Pennzoil 0w20 281k Miles

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#4453874 - 07/08/17 10:30 PM Re: Best High Mileage Synthetic [Re: bigj_16]
E150GT Offline


Registered: 03/11/12
Posts: 1088
Loc: San Antonio, TX
Valvoline Max life. I don't know if it the best but I'd use it.
_________________________
1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 250k 5w30
2016 Mazda6 Touring 6MT - 56k 10w30

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#4453875 - 07/08/17 10:33 PM Re: Best High Mileage Synthetic [Re: bigj_16]
FlyNavyP3 Offline


Registered: 07/04/16
Posts: 1407
Loc: Jacksonville, FL
I suppose the answer to your question really depends. For mending seal weeps or questionable gaskets I prefer Valvoline Max Life either in the red bottle synthetic blend or the silver bottle full synthetic with the red cap. For an older engine with borderline oil pressure I prefer M1 HM. Really the best course of action though is to fix any leaks or seal issues and then run a normal oil. My 4Runner has made it to 329,000 miles on 99% normal every day conventional oil. Doesn't leak or burn a drop.
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P-3C and P-8A Maritime Weapons and Tactics Instructor, Instructor Tactical Coordinator and Mission Commander

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#4453881 - 07/08/17 10:42 PM Re: Best High Mileage Synthetic [Re: bigj_16]
CT8 Online   content


Registered: 10/09/14
Posts: 10919
Loc: Idaho
It depends what you mean by best !
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"Don't let your preconceived notions get in the way of facts."Geoff Metcalf"

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#4453883 - 07/08/17 10:46 PM Re: Best High Mileage Synthetic [Re: bigj_16]
lawrencerd Offline


Registered: 07/03/13
Posts: 116
Loc: NC
I can say I've had luck with Valvoline's FS with Maxlife. I would say that if it cures a small oil leak without having to do any work, it is a win. They might all work well, but Maxlife has worked for me.

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#4453893 - 07/08/17 10:55 PM Re: Best High Mileage Synthetic [Re: bigj_16]
Joenpb Offline


Registered: 07/04/11
Posts: 336
Loc: San Diego, CA
I use a quality synthetic already and don't know I'll ever see the need for high mileage blend. High mileage blend sounds like a marketing scheme. lol

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#4453904 - 07/08/17 11:10 PM Re: Best High Mileage Synthetic [Re: bigj_16]
ejes Offline


Registered: 01/11/16
Posts: 312
Loc: Kansas
The "best" is very subjective, but I have used PPHM, M1HM, and VMLFS. For what it is worth, I prefer the Valvoline Maxlife FS. Bottom line for me is that it is spec'd for my cars/trucks and has been better at reducing, slowing or stopping leaks/weeping than the others in my cars that have needed that. I used it now for everything regardless of mileage.

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#4453910 - 07/08/17 11:18 PM Re: Best High Mileage Synthetic [Re: bigj_16]
sicko Offline


Registered: 09/22/08
Posts: 1723
Loc: Virginia
There is no best, but I like Valvoline MaxLife. Simply put, my engine was smoother with it than other oils.

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#4453914 - 07/08/17 11:28 PM Re: Best High Mileage Synthetic [Re: bigj_16]
andrewp1998 Offline


Registered: 10/18/08
Posts: 853
Loc: MA USA
Which one cleans the best and which one reduces consumption? I hear good things about M1 cleaning and RP hmx for slowing down consumption. I use about 1 qrt every 3k or less, give or take some so looking for something to reduce consumption.



Edited by andrewp1998 (07/08/17 11:28 PM)
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2001 Honda civic HX vtecE- 5 spd,230k+

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#4453963 - 07/09/17 01:40 AM Re: Best High Mileage Synthetic [Re: bigj_16]
Olas Offline


Registered: 12/11/13
Posts: 3932
Loc: Manchester, England
The best 'HM Synthetic' is Maxlife.
The best synthetic for a high miler is Redline.
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#4454039 - 07/09/17 07:13 AM Re: Best High Mileage Synthetic [Re: bigj_16]
bullwinkle Online   confused


Registered: 10/09/04
Posts: 7648
Loc: Cincinnati, OH, USA
ML has slowed leaking and burning in every vehicle I've used it in, including the synthetic version-but I'm not sold on the extra $ over the synthetic blend. When it's $7-10 more a jug, I'm not sure the synthetic ML is that much better. Kind of like M1 AP.
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#4454048 - 07/09/17 07:30 AM Re: Best High Mileage Synthetic [Re: bigj_16]
SR5 Online   content


Registered: 07/07/15
Posts: 4454
Loc: Down Under
Here is a link to the MaxLife Full Synthetic

http://content.valvoline.com/pdf/valvoline_full_synthetic_with_maxlife_technology.pdf

The 10W30 looks good to me, but not sure of your climate, so only down to 0F (-20 C) for cold starts, otherwise go the 5W.
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Penrite Vantage 10W40 SN & A3/B4 + Wesfil-Cooper Z154

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#4454052 - 07/09/17 07:37 AM Re: Best High Mileage Synthetic [Re: bigj_16]
Vladiator Offline


Registered: 01/04/16
Posts: 728
Loc: NC
Another vote for Full Synthetic Maxlife.
OTOH, I even had luck with Supertech 5w30 High Mileage. Eliminated oil consumption (it was 1qt/5k miles) and stopped a valve cover "sweating" syndrome.
_________________________
Thicker oils give protection for severe operations such as driving in mountains, pulling a boat, dusty conditions, short trips, high rpm, overloading, overheating and overcooling. Thin oils give MPG.

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#4454076 - 07/09/17 08:14 AM Re: Best High Mileage Synthetic [Re: bigj_16]
userfriendly Offline


Registered: 06/03/03
Posts: 2629
Loc: LaFinDuMonde
If it must be "synthetic", a marketing term, then any CK-4/SN or CK-4/SM will do in your choice of viscosity.
Engines using these oils routinely go over 1 million miles.
How much "high mileage", another marketing term, do you need?

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