Mobil 1R vs Mobil 1EP

[Bobio]

Hey all, hope you don't mind a newbie question here. I have been running regular old Mobil 1 for a number of years now but, have been considering trying Mobil 1R. Now that Mobil 1 Extended Performance is out it seems like it would be a good alternative to Mobil 1R due to the additional anti-wear and cleaning additives. There is also the fact that Mobil 1EP is cheaper and more readily available than Mobil 1R.

I seriously doubt I will do 15,000 OCIs but, more likely somewhere in the 5-7500 mile range. This is mainly due to the fact that it doesn't look like the Mobil 1 Extended Performance oil filter will be readily available.

I would be very interested to hear your thoughts on Mobil 1EP as a substitute for Mobil 1R.

[ February 06, 2005, 05:33 PM: Message edited by: Bobio ]

 

[buster]

What type of car and what type of driving? M1R can be used for long drains, but it is mainly designed for racing.

 

[Mickey_M]

quote:

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Bobio:
..... I would be very interested to hear your thoughts on Mobil 1EP as a substitute for Mobil 1R.

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They're really aimed at two different purposes.

Mobil 1 Racing is not an API qualified motor oil due to its high levels of Phosphorus. The emphasis is on anti-wear additives for vehicles that see high speeds and high loads.

Mobil 1 EP is an API qualified motor oil. The emphasis is on detergents and a relatively high TBN (Total Base Number) for owners that want to change their oil once a year.

These are two different formulas with two different intended uses.

 

[Bobio]

quote:

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Originally posted by buster:
What type of car and what type of driving? M1R can be used for long drains, but it is mainly designed for racing.

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It is a 2001 Mustang GT (4.6L V8). I commute about 100 miles a day (90% highway, 10% city). It does occaisionally see track duty (drag racing). I have also been thinking about getting into autocross.

I understand that Mobil 1R was designed primarily for racing but, there are lots of people using it in daily drivers. I am guessing the reasoning is the additional anti-wear additives in Mobil 1R. My reasoning for considering Mobil 1EP as a good alternative is that it also contains additional anti-wear additives (36% more) over standard Mobil 1 and it is less expensive and more readily available than Mobil 1R.

I would like to know just how Mobil 1EP compares to Mobil 1R for the typical Mobil 1R user.

[ February 06, 2005, 06:47 PM: Message edited by: Bobio ]

 

[Al]

I think the main difference is that 1R has much higher levels of SuperSyn and anti-wear..but its really not formulated for long duration oil changes.

Whereas the Extended performance is higher in SuperSyn and anti-wear (but not up to the level of the 1R ) but also higher in detergents and additives to insure longer drain intervals. Time will tell how things work out. But again are you into performance or long oil change intervals?

This is not a really great answer for you - others will do better.

 

[Bobio]

quote:

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Originally posted by Al:
I think the main difference is that 1R has much higher levels of SuperSyn and anti-wear..but its really not formulated for long duration oil changes.

Whereas the Extended performance is higher in SuperSyn and anti-wear (but not up to the level of the 1R ) but also higher in detergents and additives to insure longer drain intervals. Time will tell how things work out. But again are you into performance or long oil change intervals?

This is not a really great answer for you - others will do better.

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Al, thanks for the reply. This is exactly the information I am looking for. We already have an idea of much additional anti-wear and detergents there are in Mobil 1EP vs standard Mobil 1. I was just really interested in how much of these additives there are in Mobil 1EP vs Mobil 1R. If as you say there is still far more anti-wear additives in Mobil 1R than I may still go in that direction.

 

[Al]

check this..http://www.mobiloil.com/USA-English/MotorOil/Home/Homepage.aspx

 

[jsharp]

quote:

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Originally posted by Bobio:

quote:

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Originally posted by Al:
I think the main difference is that 1R has much higher levels of SuperSyn and anti-wear..but its really not formulated for long duration oil changes.

Whereas the Extended performance is higher in SuperSyn and anti-wear (but not up to the level of the 1R ) but also higher in detergents and additives to insure longer drain intervals. Time will tell how things work out. But again are you into performance or long oil change intervals?

This is not a really great answer for you - others will do better.

---

Al, thanks for the reply. This is exactly the information I am looking for. We already have an idea of much additional anti-wear and detergents there are in Mobil 1EP vs standard Mobil 1. I was just really interested in how much of these additives there are in Mobil 1EP vs Mobil 1R. If as you say there is still far more anti-wear additives in Mobil 1R than I may still go in that direction.

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If you do a search in the VOA section there are a number of VOA's for the M1R. The additive package looks really stong even compared to the new EP oils. I don't see any reason it wouldn't be a good oil for extended drains...

 

[JohnBrowning]

In two more months I will be running a UOA on M1R. I was acussed of being a thick oil monger so I tried a thin 0W30 to show how open minded I am. I am sure it will do fine but do not see where it would do any etter in a daily driver then the new M1 EP when cost is factored in! You are paying dearly to get the extra additive in M1R. I have never seen it in stores so it is a mail order items. I would lean towards M1 EP 10W30 oe 10W40, or M1 TSUV 5W40 or 0W40. You can get the EP oils at Walmart for $23 in 5Qt. jugs. I think a 6 pack of M1R is like $35+ shiping etc....

I will only have half the mile on my OCI this time due to drastic reduction in driveing cycle. But their are about 100 fold increase in short .3 mile trips in -F weather! The rest of the miles are also sub 20 mile trips instead of all the high way driveing i normaly do.

 

[ekpolk]

M1R is a racing oil, and although it has good specs, from an anti-wear perspective, you have to keep in mind that short-term, race-winning performance was the designer's target, not use over extended periods. If you're going to experiment with this stuff in normal-to-longish OCIs, then I'd strongly recommend an intermediate UOA or two to prove that the oil is holding up in your application.

 

[Patman]

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In two more months I will be running a UOA on M1R. I was acussed of being a thick oil monger so I tried a thin 0W30 to show how open minded I am.

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You should've gone with Neo's 0w5 oil if you really wanted to show how open minded you are!

 

[Mickey_M]

quote:

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Originally posted by ekpolk:
M1R is a racing oil, and although it has good specs, from an anti-wear perspective, you have to keep in mind that short-term, race-winning performance was the designer's target, not use over extended periods. .....

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Mobil 1 0w30 Racing is fully formulated - it's got the entire complement of detergents, anti-oxidants, and so on for street use.

It should do as well on extended drains as the ordinary Mobil 1.

 

[Ugly3]

Running an OCI of 5,000 to 7,500 miles regular old M1 has proven to be more than adequate, folks have run it successfully for 10,000 OCIs for years. Why mess with racing oil or longer drain oils?

 

[rugerman1]

quote:

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Originally posted by Ugly3:
Running an OCI of 5,000 to 7,500 miles regular old M1 has proven to be more than adequate, folks have run it successfully for 10,000 OCIs for years. Why mess with racing oil or longer drain oils?

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[jsharp]

quote:

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Originally posted by Ugly3:
Running an OCI of 5,000 to 7,500 miles regular old M1 has proven to be more than adequate, folks have run it successfully for 10,000 OCIs for years. Why mess with racing oil or longer drain oils?

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One problem is the new SM/GF-4 versions of M1 seem to have a weaker additive package than the old SL versions, that conclusion substantiated by the A5 rating being gone on the lighter weights. I didn't worry about running the old SL oil 10K miles. I did it a number of times. I'm not so sure about any of the newer oils that aren't the EP variety though.

I have the M1R in one vehicle now but it wasn't because the old oils didn't work well enough. I'm just like a lot of others around here. Trying different things is all part of the fun...