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Mobil 1 High Mileage #5373099 03/11/20 03:50 AM
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Hogwash Offline OP
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I always feel a little silly asking an oil related question on this site because I'm sure most topics have been covered many times before. But here goes.

What are people's opinions on using M1 High Mileage oil in a vehicle with 75k on it? I use it in my daughter's old Yaris without much thought. It's 10 years old with a ton of miles on it.

But my 5 year old 4.0 Tacoma is due for it's next change at 75k miles. I'm not falling for the marketing per say. But it seems like the HM formula has a good additive package and people have had some good OA from it. I noticed recently that it's SN/SN Plus rated...and that's obviously what my Taco calls for. I can get it for about the same price as M1.

And this would be in the 5/30 flavor.

Thoughts?


'10 Toyota Yaris LB - M1 HM 5/30 - Fram Ultra Filter
'15 Toyota Tacoma TRD Sport - M1 5/30 - Fram Ultra Filter
'19 Toyota Corolla - M1 0/20 - Fram Ultra Filter
Re: Mobil 1 High Mileage [Re: Hogwash] #5373104 03/11/20 04:21 AM
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Triple_Se7en Offline
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Yesterday's 75k vehicles are today's 125k vehicles.
If your engine is not showing any symptoms for need, then continue-on with regular synthetic oil.


2019 Hyundai Santa Fe 2.4 GDI - Pennzoil Ultra Platinum 5w30 / OEM 35504 Filter
2020 Kia Soul X-Line 2.0 MPI - a 50-50 blend of Pennzoil Platinum HM & Pennzoil Gold 5w30 // AC Delco PF1127 Ecore




Re: Mobil 1 High Mileage [Re: Hogwash] #5373111 03/11/20 04:48 AM
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Bjornviken Offline
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We dont use any HM oils, M1 recommends to use 5w-50 in older engines with 300-500k km. I think its marketing with the HM oils when a euro oil will work better. I would use M1 0w-40 in that engine or the m1 5w-30 esp.

Re: Mobil 1 High Mileage [Re: Hogwash] #5373112 03/11/20 04:50 AM
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PimTac Offline
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I’ve owned vehicles with many more miles than that on them. I have never used HM oil.

If you don’t have any weeps then I would continue to use what you have been using.


2017 Mazda CX5
Mobil 1 Annual Protection 0w20
Roki OEM filter.
Re: Mobil 1 High Mileage [Re: Triple_Se7en] #5373117 03/11/20 05:14 AM
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bbhero Offline
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Originally Posted by Triple_Se7en
Yesterday's 75k vehicles are today's 125k vehicles.
If your engine is not showing any symptoms for need, then continue-on with regular synthetic oil.



I agree ^^^^^^^^^

No change needed.


Nissan Altima 3.5 Coupe
Cam2 Full synthetic 5w30 Carquest Blue 84356
"Treat your family like your friends and treat your friends like your family."
Re: Mobil 1 High Mileage [Re: Hogwash] #5373121 03/11/20 05:37 AM
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Char Baby Offline
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I agree with the others. No need for HM oil in your Taco. If you're not experiencing any leaks, blowby or smoking then do what you've been doing.


Retired 6 yrs now & lovin' it
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic 1.8 LX
Re: Mobil 1 High Mileage [Re: Hogwash] #5373123 03/11/20 05:47 AM
Joined: Oct 2009
Posts: 6,278
JohnnyJohnson Offline
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HM oil is not going to hurt your car. I use it off and on like currently. Got some Pennzoil 5W-20 for $4 a Jug after rebate. Its in my Corolla has about 3K miles on it currently it is working out just fine. Some people just spend more time worrying than is needed. It will be just fine and yes the next time HM oil is on a sale with a good rebate will I buy it again? You bet I will.


2004 Corolla 140080
Out: Havoline Pro DS 10w-30 Purolator PureOne 10-29-19 136457
In: Pennzoil Platinum HM 5W-20 ST 4386
2006 Duramax 77077
Out: T6 5W-40 XG9100 73909
In: Rotella Dino PH9100 11-3-19
Re: Mobil 1 High Mileage [Re: Hogwash] #5373125 03/11/20 05:57 AM
Joined: Dec 2013
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Olas Offline
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Maxlife is one of the best HM oils available and its on every street corner where you guys are!
M1 is a well known name with a big reputation but it will make your valvetrain super-noisy.

Stick with VML.

Re: Mobil 1 High Mileage [Re: Hogwash] #5373132 03/11/20 06:21 AM
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danez_yoda Offline
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Can't really go wrong either way. Some still link HM oil to the old days of "seal swellers" additives that would stop a car from leaking for a while as long as you kept using the seal sweller. The moment you stopped using it the seals would retract and leak even more than before you started.

Modern HM oil don't do that. (according to the manufacturers) These are seal conditioners which prevent the seals from getting hard and shrinking in the first place. Sort of like armor all for your seals. (No Armorall flame wars please, replace with your favorite rubber protectant if you will)

While you don't need a HM oil, it won't hurt a thing.

Re: Mobil 1 High Mileage [Re: Hogwash] #5373172 03/11/20 07:38 AM
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Hogwash Offline OP
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The engine is drum tight. No leaking, weeping, burning, etc.

One thing that caught my eye is that M1 HM seems to be on the heavier side of the 5/30 spectrum. That I like. And it's basically the same price as M1. I typically use Mobil1 and buy it either when it's on sale or has rebates.

I figured I might get a range of answers. I appreciate everyone's opinion. I'll add that I've seen no issues at all with it in my daughter's Yaris....other than the first couple of changes being very black. I'm assuming that's because of it supposedly heavy detergent pack. The oil stays a golden color these days.

Keep the opinions and info coming. And anyone out there with some personal OA numbers....jump in.


'10 Toyota Yaris LB - M1 HM 5/30 - Fram Ultra Filter
'15 Toyota Tacoma TRD Sport - M1 5/30 - Fram Ultra Filter
'19 Toyota Corolla - M1 0/20 - Fram Ultra Filter
Re: Mobil 1 High Mileage [Re: Hogwash] #5373179 03/11/20 07:42 AM
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4WD Offline
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Not sure where you live as for air temps …
but if you wanted to come up a bit on HTHS ? The M1 HM 10w30 is where the beef is

Re: Mobil 1 High Mileage [Re: danez_yoda] #5373231 03/11/20 08:42 AM
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Dave9 Offline
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Originally Posted by danez_yoda
Can't really go wrong either way. Some still link HM oil to the old days of "seal swellers" additives that would stop a car from leaking for a while as long as you kept using the seal sweller. The moment you stopped using it the seals would retract and leak even more than before you started.


Not necessarily "the moment", it can take a while for the seals to shrink again, even many miles, so people who flip back and forth, don't see the direct correlation between their premature seal wear and the HM oil.

Quote
Modern HM oil don't do that. (according to the manufacturers)


This is a false statement without a qualifier of which manufacturer you're talking about. Valvoline Maxlife for example, does in fact do this according to representatives.

Quote
These are seal conditioners which prevent the seals from getting hard and shrinking in the first place. Sort of like armor all for your seals. (No Armorall flame wars please, replace with your favorite rubber protectant if you will)


Show us a statement that they work like armor all instead of like a seal sweller. That's not even how the are marketed, if they had only benefits they would be called "advanced protection" rather than "high mileage".

There is no conditioner for seals that can keep them from aging. Conditioner is marketing department doubletalk because seal sweller can be a dirty pair of words, as they have seen from public discussion. It is a deliberately vague, non-specific word that does not mean it's like armor all.

Last edited by Dave9; 03/11/20 08:55 AM.
Re: Mobil 1 High Mileage [Re: Hogwash] #5373261 03/11/20 09:22 AM
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Trav Offline
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The effects of swellers aka seal conditioners depends on the material the seal is made from. There is nothing that I know of that will swell a PTFE seal and that is what some of the seals in your Toyota's are especially the mains and probably cam seals, the others are mostly Viton which is very resistant to chemicals that will cause swelling.
Some parts use no gaskets but instead a silicone sealer which does not like these sorts of chemicals and can soften and leak in time. In the amount these chemicals (mostly esters IIRC) are found in approved engine oils they are basically harmless.

Old seal types like Buna-N will swell readily and stop leaks doing so but they return to their shrunken state in time. This is an o ring compatibility chart, the material in seals is the same. The bottom line is you can use HM or not with the seal your engines use it probably wont make much of a difference one way or the other to the seals.

https://www.allorings.com/o-ring-compatibility


ASE L1, Master. Deutsch Meisterbrief.
Re: Mobil 1 High Mileage [Re: 4WD] #5373278 03/11/20 09:47 AM
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Olas Offline
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Originally Posted by 4WD
Not sure where you live as for air temps …
but if you wanted to come up a bit on HTHS ? The M1 HM 10w30 is where the beef is


if you want beef they have beef https://www.mobil.com/en/lubricants...or-oils/mobil-10w-40-high-viscosity-oils

VML is still the daddy though

Re: Mobil 1 High Mileage [Re: Hogwash] #5373282 03/11/20 09:52 AM
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daman Offline
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You cant go wrong with any M1 flavor use the HM with confidence.


"Always"....Mobil 1

Current fill: AFE 0w30
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