How does this oil's consumption compare to other M1 oils or any others at all that you've used? XOM refuses to give out information not on their datasheets, in this case noack. In my experience M1 oils tend to burn much more than other oils in engines that consume oil. I'm wondering if their HM product is better in this aspect.
Mobil1 High Mileage- oil consumption
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MolaKule
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I used it in a PathFinder and TrailBlazer one summer and found the consumption rate in the PathFinder was almost zilch, where previously it had been about 1/2 quart. I was using M1 10W30 HM at the time.
Consumption in Traiblazer was zilch, but had been zilch before as well.
Consumption in Traiblazer was zilch, but had been zilch before as well.
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The HM version is a little thicker for grade, and as such I'd expect consumption to likely be a little less, but certainly not worse.
Regular M1 - both Toyotas drink 1/2 qt every 2k-2500. M1 HM, 1/2 qt every 5k. No leaks either
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
I just put the 5w30 HM in the Honda.
There are different seal conditioners. HM oils are good for engines that used conventional oil and could use added cleaning and anti wear.
I am giving it a shot just to try it. It's the same additives as the other SN grades, just more ZDP and shear stable.
There are different seal conditioners. HM oils are good for engines that used conventional oil and could use added cleaning and anti wear.
I am giving it a shot just to try it. It's the same additives as the other SN grades, just more ZDP and shear stable.
Originally Posted By: addyguy
Buster, you running 100% M1 HM 5W-30, or is it blended-down with 0W-20?
M1 5w30 HM. Top up oil will be the 0w20 to lower the vis. I don't want to go any thicker. I prefer a bit more ZDP than the AFE oils have too. 695ppm. 1,000ppm for the HM. Same mg/ca.
Buster, you running 100% M1 HM 5W-30, or is it blended-down with 0W-20?
M1 5w30 HM. Top up oil will be the 0w20 to lower the vis. I don't want to go any thicker. I prefer a bit more ZDP than the AFE oils have too. 695ppm. 1,000ppm for the HM. Same mg/ca.
I'm now using M1 5W-30 HM in both the Montana and Outback. Both use 1/2 quart in about 5K miles. With the regular M1 5W-30, they used 1/2 quart in about 5K miles. So no difference
A thread a while back referenced the difference between Mobil1 HM 5w-30 and 10w-30 relative to performance specs. Is that meaningful? At the time, I remember wanting to try whichever met a certain spec, but can't recall clearly. Time to pds hunt.
EDIT:
http://www.mobil.com/USA-English/Lubes/PDS/NAXXENPVLMOMobil_1_High_Mileage_Oil.aspx
EDIT:
http://www.mobil.com/USA-English/Lubes/PDS/NAXXENPVLMOMobil_1_High_Mileage_Oil.aspx
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Mobil HM oils have very good add packs and in most cases will cut down on oil consumption...
Originally Posted By: jstutz
Does anyone else find it odd that the 10w40 is the only one with API rating SM? Wonder why
No, it's not odd. API SM/SN has introduced much stricter additive pack limits on Xw-30 grades, but not on Xw-40 grades. Hence, all the Xw-30 grades of M1 HM have add packs that are too rich to meet it.
Does anyone else find it odd that the 10w40 is the only one with API rating SM? Wonder why
No, it's not odd. API SM/SN has introduced much stricter additive pack limits on Xw-30 grades, but not on Xw-40 grades. Hence, all the Xw-30 grades of M1 HM have add packs that are too rich to meet it.
Originally Posted By: friendly_jacek
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
can someone please answer my question?
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
can someone please answer my question?
I was told there is a real "chemistry" behind HM oils. What it is exactly I do not know. I suspect ester and seal conditioners, which vary by brand and company. HM oils are often at the higher viscosity range per grade too, so in a high mileage engine theoretically a thicker oil will burn off less.
Originally Posted By: friendly_jacek
Originally Posted By: friendly_jacek
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
can someone please answer my question?
Very often a quality synthetic oil will have a cleaning value to it. Coked rings and heavy varnish are a big problem that have had neglect and where oil oxydation has occured over a long period of time. Also seals that are aging and may be letting some oil weep by can benefit from the extra benifit of a quality HM oil.
http://www.mobiloil.com/usa-english/MotorOil/Synthetics/Mobil_1_Sludge_Protection.aspx
Originally Posted By: friendly_jacek
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
can someone please answer my question?
Very often a quality synthetic oil will have a cleaning value to it. Coked rings and heavy varnish are a big problem that have had neglect and where oil oxydation has occured over a long period of time. Also seals that are aging and may be letting some oil weep by can benefit from the extra benifit of a quality HM oil.
http://www.mobiloil.com/usa-english/MotorOil/Synthetics/Mobil_1_Sludge_Protection.aspx
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Originally Posted By: friendly_jacek
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
They are thicker n their viscosity range, and have seal swelling agents. Both can contribute to less oil being emitted from the engine.
To the OP,how various brands work in your engine and conditions is something tht only you can tell us.
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
They are thicker n their viscosity range, and have seal swelling agents. Both can contribute to less oil being emitted from the engine.
To the OP,how various brands work in your engine and conditions is something tht only you can tell us.
Originally Posted By: mechtech2
Originally Posted By: friendly_jacek
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
They are thicker n their viscosity range, and have seal swelling agents. Both can contribute to less oil being emitted from the engine.
To the OP,how various brands work in your engine and conditions is something tht only you can tell us.
Agreed. One example is the decreased consumption I've noticed over the past 5k miles with AFE 0w30 in my EJ25. The opposite of what I expected.
Originally Posted By: friendly_jacek
I'm still puzzled how these HM oils decrease consumption. Seams to work with different brands. I have good experience with Maxlife. Also, my experience suggested they work by cleaning rings. But, what is so special about the formula? Esters?
They are thicker n their viscosity range, and have seal swelling agents. Both can contribute to less oil being emitted from the engine.
To the OP,how various brands work in your engine and conditions is something tht only you can tell us.
Agreed. One example is the decreased consumption I've noticed over the past 5k miles with AFE 0w30 in my EJ25. The opposite of what I expected.
I just experienced the opposite effect using Mobil 1 HM for the first time. Oil consumption increased dramatically. This is likely due to other factors (i.e. engine wear), but I wanted to ask to be sure.
The vehicle is a 2004 Toyota RAV4 with 96,000 miles. Last oil change was 5700 miles ago. I put 4 quarts in and drained 2.9 today.
While 1.1 quarts over 5700 miles isn't extreme, it's more than double what it was an oil change ago after going 6000-7000 miles with PP Synthetic.
Oil consumption is a common complaint with Toyota's 2AZ-FE engine but I figured it happened more gradually. Does my sudden increase jive with "normal" consumption, or does it suggest a different problem?
The vehicle is a 2004 Toyota RAV4 with 96,000 miles. Last oil change was 5700 miles ago. I put 4 quarts in and drained 2.9 today.
While 1.1 quarts over 5700 miles isn't extreme, it's more than double what it was an oil change ago after going 6000-7000 miles with PP Synthetic.
Oil consumption is a common complaint with Toyota's 2AZ-FE engine but I figured it happened more gradually. Does my sudden increase jive with "normal" consumption, or does it suggest a different problem?
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