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Old 12-15-2012, 03:56 PM   #1
garzdos
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Default Anyone out there LOVE Mobil 1?

Okay, I've searched and read more forums, threads and posts than I can ever remember on Mobil 1 5W30 motor oil...seems like a bunch of people says it's horrible for a 2012 WRX (my car - stage 1). Peppered within in some threads are interjectors who say they have used Mobil 1 and had no problems at all. My dad swore by Mobil 1 for his Evolution VII. I know my car is different...

Anyway, is there anyone out there who loves and swears by Mobil 1 5W30? Perhaps I'm looking for some affirmation for using it...I don't even have 3,000 miles on my 8 month old '12 WRX...I did my first oil change at 1,400 and used Mobil 1.

And yes, I know I can send in my oil for an analysis of my specific car, but in the mean time I want to hear from the Mobil 1 lovers...any out there?
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Old 12-15-2012, 04:13 PM   #2
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Good luck.

Or you could run an engine oil that has a proven track record.

M1 and Subaru engines comes down to a lot of failures, can't "prove" it's the M1, but spun bearings typically have M1 in the case.

Michael Jackson may not have been charged with raping boys, but I would still not let hime baby sit my kids.
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Old 12-15-2012, 04:54 PM   #3
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Quote:
Originally Posted by garzdos View Post
Okay, I've searched and read more forums, threads and posts than I can ever remember on Mobil 1 5W30 motor oil...seems like a bunch of people says it's horrible for a 2012 WRX (my car - stage 1). Peppered within in some threads are interjectors who say they have used Mobil 1 and had no problems at all. My dad swore by Mobil 1 for his Evolution VII. I know my car is different...

Anyway, is there anyone out there who loves and swears by Mobil 1 5W30? Perhaps I'm looking for some affirmation for using it...I don't even have 3,000 miles on my 8 month old '12 WRX...I did my first oil change at 1,400 and used Mobil 1.

And yes, I know I can send in my oil for an analysis of my specific car, but in the mean time I want to hear from the Mobil 1 lovers...any out there?
For one thing, it shears down to fast because of the oil volume high flow oil system that a subaru engine has. If you insist on using a 5w30 of some kind, then try the M1 high mileage 5w30 or the newer Motul X-clean 5w30. I suggested the M1 high mileage 5w30 because it doesn't shear as easy like the energy conserving 5w30 counter part does. While you are at it, use a proper oil filter with the proper psi bypass valve setting which is at around 23 or so not some crappy filter that has something like 12-16.
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Old 12-15-2012, 05:01 PM   #4
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I run Mobil 1 High Milage in my '02 Impreza TS. It's naturally aspirated, so I don't worry as much about the issues that people seem to be concerned about with turbo engines. For the NA engines, my impression has been that oil is oil is oil if it meets the Subaru specs. At that point, I begin to worry more about the filter than the oil, (filter media quality, bypass valve specs, etc.) as long as the oil is of good quality, and meets specs.

For the turbo engines, that's a whole 'nother crapshoot I have no clue about.
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Old 12-15-2012, 05:29 PM   #5
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Quote:
Originally Posted by subi400 View Post

For one thing, it shears down to fast because of the oil volume high flow oil system that a subaru engine has. If you insist on using a 5w30 of some kind, then try the M1 high mileage 5w30 or the newer Motul X-clean 5w30. I suggested the M1 high mileage 5w30 because it doesn't shear as easy like the energy conserving 5w30 counter part does. While you are at it, use a proper oil filter with the proper psi bypass valve setting which is at around 23 or so not some crappy filter that has something like 12-16.
I used and plan on continuing to use the blue oem filter I get from my dealer.

When you say the oil shears down too fast, are you referring to the engine oil's overall life? And if so, would this be less of an issue for me since I put so few miles on my car? Maybe 3,500 per year.
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Old 12-15-2012, 05:43 PM   #6
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Quote:
Originally Posted by garzdos View Post
I used and plan on continuing to use the blue oem filter I get from my dealer.

When you say the oil shears down too fast, are you referring to the engine oil's overall life? And if so, would this be less of an issue for me since I put so few miles on my car? Maybe 3,500 per year.
point 1: i don't believe they still make the blue ones

point 2: yes, he is. 3500 miles? not an issue. i'd just change it every year.
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Old 12-15-2012, 05:48 PM   #7
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Originally Posted by vicious_fishes View Post

point 1: i don't believe they still make the blue ones

point 2: yes, he is. 3500 miles? not an issue. i'd just change it every year.
Just bought a blue one two days ago...maybe back stock? Says part 15208AA12A.
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Old 12-15-2012, 09:05 PM   #8
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i just bought 6 oem blues last week.
definitely still being made.

-1 for mobil1 on boxer engine platform.
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Old 12-15-2012, 10:28 PM   #9
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garbage. my wifes forester used it like crazy. changed to valvoline synpower and the oil consumption is gone now. its a 2011 forester.
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Old 12-15-2012, 10:29 PM   #10
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Quote:
Originally Posted by garzdos View Post
Just bought a blue one two days ago...maybe back stock? Says part 15208AA12A.
that 12a is the new filter. the 130 and 160 oil filters are black and are for the new 2.0 and 2.5 fb motor in the forester and impreza.
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Old 12-15-2012, 11:23 PM   #11
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Quote:
Originally Posted by blessthekellen View Post
i just bought 6 oem blues last week.
definitely still being made.

-1 for mobil1 on boxer engine platform.
Can you elaborate on why you feel the oil is bad specifically for the boxer platform versus something different? This is my first boxer engine so my knowledge base is limited.
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Old 12-15-2012, 11:29 PM   #12
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Quote:
Originally Posted by garzdos View Post
I used and plan on continuing to use the blue oem filter I get from my dealer.

When you say the oil shears down too fast, are you referring to the engine oil's overall life? And if so, would this be less of an issue for me since I put so few miles on my car? Maybe 3,500 per year.
What I was getting at was the fact that instead of staying within the 5w30 grade the oil moves into the 5w20 area which is REALLY bad for a subaru turbo engine. There's been reports of the energy conserving version of M1 5w30 thinning to a 5w20 in between 1-2k miles. An oil's life expectancy in an engine can be estimated by doing an oil analysis by sending a sample in to like Blackstone to see how it is holding up. If you insist on still using M1 try the 0w40 and then send in a sample of the oil from the pan at like 4 or 5 months to see how it is doing since you don't put very many miles on your car.

Take a look at this thread about some oil filters and their relief valve psi specs. http://www.subaruforester.org/vbulle...parison-99130/ "Some" people seem to think an oil filter doesn't matter, that getting a cheap one and then changing it at like 3k miles will be just fine. That is NOT I repeat NOT wise because these cheap filters like in the site I posted up above don't meet the 23 relief valve psi spec except 4 of the filters the black subaru one Tokyo Roki 15208AA100, the earlier blue one I believe Honeywell/Subaru 152208AA12A, the Beck Arnely 041-8181 and then the Napa Gold 7712 filter.

Look at post #19 which is another great oil filter to use now. I believe there is an issue with either the earlier or newer blue subaru oil filter though. Don't remember which one....

Even for 3500 miles, regular M1 5w30 is going to cause problems at one point. Why not run a better more robust oil and not have to worry about it...hmm?? You have a turboed engine in your subaru, it puts the oil through much more stress which needs a more robust oil to stand up to that, plain and simple

Last edited by subi400; 12-15-2012 at 11:48 PM.
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Old 12-15-2012, 11:41 PM   #13
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Quote:
Originally Posted by subi400 View Post

Take a look at this thread about some oil filters and their relief valve psi rates.

Look at post #19 which is another great oil filter to use now. I believe there is an issue with either the earlier or newer blue subaru oil filter though.

Even for 3500 miles, regular M1 5w30 is going to cause problems at one point. Why not run a better more robust oil and not have to worry about it...hmm?? You have a turboed engine in your subaru, it puts the oil through much more stress which needs a more robust oil to stand up to that, plain and simple
Explain more robust...I'm using an oil that meets factory specifications/recommendations.
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Old 12-15-2012, 11:44 PM   #14
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So many assumptions are made with M1. It's a common oil, a lot of people use it, so of course there will be a lot more failures. The real question is what is the % of failures of M1 users vs. % of failures of other oil. That information isn't easily available.

Anyway, I've used M1 10w-30 in my 02 since I bought it at 46k miles. I've done track days, I've done autocrosses, I've gone as much as 9k miles between oil changes, and I've never had an issue. I'm at 155k now. I don't abuse my transmission, but I inspect the red line at least once a day during my commute.
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Old 12-15-2012, 11:56 PM   #15
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Quote:
Originally Posted by garzdos View Post
Can you elaborate on why you feel the oil is bad specifically for the boxer platform versus something different? This is my first boxer engine so my knowledge base is limited.
To make this clear, M1 by itself is not bad except for the energy conserving 5w30, and extended performance 5w30 in a subaru turbo engine and some NA engines. The M1 5w30, 10w30 and 10w40 high mileage stuff is a little more robust and is decent at 3-5k mile oil changes. The M1 0w40 and turbo diesel 5w40 is also very good in a turboed subaru engine. The shell rotella T-6 5w40 is labeled for diesel and gasoline engines but the diesel specific M1 5w40 can still be used in these subaru trubo engines and give great results just like the Rotella T-6 5w40 does.

If you think a Xw40 oil is too thick, the rotell T-6 5w40 has a pour point in the higher -40 something degrees or so.

Last edited by subi400; 12-16-2012 at 12:12 AM.
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Old 12-16-2012, 12:01 AM   #16
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I have a 02 wrx and have used m1 5w-30 for 120k miles now with no problems other than around 2500 miles it starts to burn oil and I have to keep an eye on it all the time. Ive read that rotella t6 is good can anyone else back that up?
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Old 12-16-2012, 12:01 AM   #17
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Ever run a higher weight? Sayy 20w-50.... Consequences???
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Old 12-16-2012, 12:02 AM   #18
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Originally Posted by garzdos View Post
Explain more robust...I'm using an oil that meets factory specifications/recommendations.
Robust as in holding up better during an engines time at operating temp. Add a hot turbo in there especially if/when the car is driven hard and a regular 5w30 oil is not going to hold up nearly as well as 5w40 will. There's countless oil analysis's to back this fact up. Plus, a good 5w40 is going to have better shear stability, more of the important additives such as zinc and phosphorous and a stronger flash point meaning it will stay within grade much better.
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Old 12-16-2012, 12:11 AM   #19
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I have a 02 wrx and have used m1 5w-30 for 120k miles now with no problems other than around 2500 miles it starts to burn oil and I have to keep an eye on it all the time. Ive read that rotella t6 is good can anyone else back that up?
There's oil analysis's to back up that the regular M1 5w30 does start shearing down before 3k miles therefore causing you to have to add oil.

I run the shell rotella T-6 5w40 in my impreza 2.2 and it loves it. I burn some oil only when I engine brake because of extra clearance in cylinder 4 causing piston slap. But, soo many people here have had great results switching from a poor 5w30 to a 5w40 like the rotella T-6 5w40.
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Old 12-16-2012, 12:14 AM   #20
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Originally Posted by SteppinOut29 View Post
Ever run a higher weight? Sayy 20w-50.... Consequences???
Some people do if they have had an engine built for racing. Still way too thick on start up. Would be much better to go with a 5w50 though, good flow when cold and nice cushion at operating temp.
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Old 12-16-2012, 12:17 AM   #21
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Quote:
Originally Posted by thatderekguy View Post
I have a 02 wrx and have used m1 5w-30 for 120k miles now with no problems other than around 2500 miles it starts to burn oil and I have to keep an eye on it all the time. Ive read that rotella t6 is good can anyone else back that up?
Switch to the Rotella or the M1 0W40 and I'm sure you will see a difference in consumption.

Search the countless threads on oil. The Rotella is a favorite because its cheap AND IT WORKS. You will spend more on the M1 5W30 and have an inferior product.

I have tried the M1 5W30 and was very disappointed. It turned to black water way too soon. I could not get it out soon enough.

Your car, your money so its up to you.
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Old 12-16-2012, 12:30 AM   #22
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In the user manual, it says 5w-30 synthetic oil is the required oil for optimum performance.

Some people swear by t6 5w-40 and others by German Castrol aka Castrol Edge w/ SPT 0w-30

From what I have read from another oil debate thread, I am going with GC.
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Old 12-16-2012, 12:53 AM   #23
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Originally Posted by ohfawkitzlee View Post
In the user manual, it says 5w-30 synthetic oil is the required oil for optimum performance.

Some people swear by t6 5w-40 and others by German Castrol aka Castrol Edge w/ SPT 0w-30

From what I have read from another oil debate thread, I am going with GC.
If we talk about performance from subaru's point of view for their 5w30, it means that last little bit of mpg and what.....emissions to... How can they say that a 5w30 is best when a good 5w40 protects much better than any of their 5w30 crap?? Because it is "their" stuff....
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Old 12-16-2012, 01:35 AM   #24
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Can someone explain the oil consumption issue? Am I correct in assuming that, as the oil shears, it begins to slip past places it isn't supposed to and that is how it is "consumed" or is it something else?
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Old 12-16-2012, 01:46 AM   #25
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Can someone explain the oil consumption issue? Am I correct in assuming that, as the oil shears, it begins to slip past places it isn't supposed to and that is how it is "consumed" or is it something else?
The oil fairy comes, takes some oil and leaves a coin in your seat cushion.



Yes, the oil thins and or engines wear allowing it to get burned away.
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