Mobile 1 Extended Performance
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
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From: Minnesota
Mobile 1 Extended Performance
Just changed my oil today for the first time on the 04 with M1 5W-30 Extended Performance... and I just found out that it does not meet the GM4718M standard (why not??). I didn't know about the "special" GM standard so I bought the Extended Performance stuff since I figured it was the best version of M1. Guess I'll be crawling under the car again to put the cheaper stuff in. From M1's advertisment I saw it seemed like M1 Extended Performance was the best of the best. Guess it's just another product they sell. Seems like there is going to be alot of people not paying enough attention to it and buy the wrong oil.
Safety Car
Joined: May 2004
Posts: 4,487
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From: Naples Florida
Just changed my oil today for the first time on the 04 with M1 5W-30 Extended Performance... and I just found out that it does not meet the GM4718M standard (why not??). I didn't know about the "special" GM standard so I bought the Extended Performance stuff since I figured it was the best version of M1. Guess I'll be crawling under the car again to put the cheaper stuff in. From M1's advertisment I saw it seemed like M1 Extended Performance was the best of the best. Guess it's just another product they sell. Seems like there is going to be alot of people not paying enough attention to it and buy the wrong oil.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
I wonder how many people are using the 5W-30 Extended Performance oil and don't either know it or don't realize it isn't supposed to be in the LSX engine. I mean it's not hard to grab M1 EP 5W-30 and not realize they really want the bottle without the gold on the label. I'm sure a lot of people know that they should use M1 in there car and assume if the regular version is good enough for their car then the Extended Performance version surely is.
I just wrote them an email asking for a technical reason the Extended Performance oil does not meet the GM4718M standard. I pretty much expect a canned answer to the effect of, "M1 5W-30 EP does not meet the GM4718M standard." What I'm hoping for will include "Technically speaking it does meet the standard but GM hasn't gotten around to giving it the seal of approval" lol. I'm just trying to avoid what will amount to a $130 oil change (I used the M1 Filter as well).
I just wrote them an email asking for a technical reason the Extended Performance oil does not meet the GM4718M standard. I pretty much expect a canned answer to the effect of, "M1 5W-30 EP does not meet the GM4718M standard." What I'm hoping for will include "Technically speaking it does meet the standard but GM hasn't gotten around to giving it the seal of approval" lol. I'm just trying to avoid what will amount to a $130 oil change (I used the M1 Filter as well).
Last edited by reactor2; Apr 30, 2007 at 12:29 AM.
Racer
Joined: Jan 2006
Posts: 432
Likes: 2
From: peoria az
St. Jude Donor '07
http://www.mobiloil.com/USA-English/...AQs.aspx#FAQs2
from what i read its better, just like you said gm hasnt gotten arount to giving its seal of approval but what do i know ..lol
go royal purple next time,
i wouldent change what you have in her now
http://forums.corvetteforum.com/show...597&forum_id=1
from what i read its better, just like you said gm hasnt gotten arount to giving its seal of approval but what do i know ..lol
go royal purple next time,
i wouldent change what you have in her now
http://forums.corvetteforum.com/show...597&forum_id=1
Last edited by pala; Apr 30, 2007 at 12:55 AM.
Safety Car
Joined: Jan 2007
Posts: 4,735
Likes: 14
From: Visalia CA
I too was baffled the first time I saw the Mobile 1 commercial on TV for the "Extended Performance" version of their oil. 15,000 miles. So what. Is that supposed to be better than the "regular" Mobil 1? Maybe they should have called it Mobil 2. 
Just had to go check the 5 qt container of Mobil 1 in my garage. Lucky for me it's the GM4718M stuff.
Just had to go check the 5 qt container of Mobil 1 in my garage. Lucky for me it's the GM4718M stuff.
Pro
Joined: Jun 2004
Posts: 618
Likes: 0
From: Houston TX
Considering that GM has various certification numbers on different Mobil 1 oils (I picked up the truck one by accident once and it had a different GM cert on it), I find it unlikely that they merely haven't tested it. Besides, Mobil 1 does the testing AFAIK, GM merely provides the specs it has to meet.
The extended performance is likely just something similar to gasoline with fuel stabilizer in it, and would just extend the weight range (shear strength) longer into its use whereas the regular stuff likely thickens sooner as it gets old.
Melting Slicks
Joined: Jul 2004
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From: Central NJ
St. Jude Donor '05-'06-'08-'10
I wouldn't rush out and change the oil again. While it's debatable whether or not it's of equal quality, a few thousand street miles won't hurt. Now, if you race or run the car exceptionally hard, I'd swap the oils. 
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Melting Slicks
Joined: Jan 2005
Posts: 2,409
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From: St. Louis Missouri
Is your car still under warranty? If not, I would leave it in. I did the same thing my last oil change and noticed no bad effects what so ever. I went ahead and ran it until fall when I changed the oil before winter.
Team Owner
Joined: Mar 2001
Posts: 25,889
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From: Virginia Beach
CI 3-5-6-7-8 Veteran
OMFG... your car will blow up! Massive engine wear will occur!
Actually the EP oil has a much better additive package and is indeed good for 15,000 mile or one year (whichever comes first) change intervals.
I have been running Amsoil 5w40 in the corvette for years... guess what my warranty didn't spontaneously evaporate.
3000 mile intervals are history... mostly marketing.
I follow the DIC in my car w/ the corvette or I change it out if I have a track event w/ over 3000 miles on the oil, otherwise I let it ride until the DIC tells me to change it.
My GMC Canyon truck has an oil life monitor too. Per the forums for that truck the monitor will go 7-9k before telling you to change the oil... and that's with regualar non-syn oil.
I'm running Mobil 1 EP in the truck and following the oil life monitor.
Oh... and both Porsche and BMW warranty your oil changes... at 15,000 mile intervals.
Diesel Semi trucks, in many cases, never change the oil. They clean their filters and top it off... the synthetic oil doesn't break down.
Actually the EP oil has a much better additive package and is indeed good for 15,000 mile or one year (whichever comes first) change intervals.
I have been running Amsoil 5w40 in the corvette for years... guess what my warranty didn't spontaneously evaporate.
3000 mile intervals are history... mostly marketing.
I follow the DIC in my car w/ the corvette or I change it out if I have a track event w/ over 3000 miles on the oil, otherwise I let it ride until the DIC tells me to change it.
My GMC Canyon truck has an oil life monitor too. Per the forums for that truck the monitor will go 7-9k before telling you to change the oil... and that's with regualar non-syn oil.
I'm running Mobil 1 EP in the truck and following the oil life monitor.
Oh... and both Porsche and BMW warranty your oil changes... at 15,000 mile intervals.
Diesel Semi trucks, in many cases, never change the oil. They clean their filters and top it off... the synthetic oil doesn't break down.
Team Owner
Joined: Mar 2001
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From: Virginia Beach
CI 3-5-6-7-8 Veteran
Originally Posted by From Mobil's FAQ
If Mobil 1 Extended Performance is recommended for 15,000-mile intervals, what’s the maximum limit to which it can be pushed? In other words, if a driver goes an extra 1,000 miles or so, is he going to damage his engine?
Mobil 1 Extended Performance is recommended for up to 15,000-mile or one-year oil change intervals. However, if your vehicle manufacturer recommends an oil change interval beyond 15,000 miles and Mobil 1 meets the performance level specified, you can be assured that Mobil 1 will go the distance.
Do I need to flush my engine before switching to Mobil 1 Extended Performance?
You do not need to flush your engine prior to changing to Mobil 1 Extended Performance.
Upon what driving conditions are these performance claims based? Normal or severe driving conditions?
These claims relate to all typical consumer driving conditions, excluding those mentioned below. In other words, if you drive under normal conditions and use Mobil 1 Extended Performance in your vehicle, the oil is guaranteed to protect your engine for 15,000 miles. We also recommend that drivers consult their owner’s manual while their vehicle is under warranty, and follow the guidelines set forth there. Additionally, we recommend that if consumers drive routinely in severe conditions that they follow the oil change interval recommended in their owner's manual for severe conditions. We define "severe conditions" as:
*racing or commercial applications;
*frequent towing or hauling;
*extremely dusty or dirty conditions; or
*excessive idling.
Mobil 1 Extended Performance is recommended for up to 15,000-mile or one-year oil change intervals. However, if your vehicle manufacturer recommends an oil change interval beyond 15,000 miles and Mobil 1 meets the performance level specified, you can be assured that Mobil 1 will go the distance.
Do I need to flush my engine before switching to Mobil 1 Extended Performance?
You do not need to flush your engine prior to changing to Mobil 1 Extended Performance.
Upon what driving conditions are these performance claims based? Normal or severe driving conditions?
These claims relate to all typical consumer driving conditions, excluding those mentioned below. In other words, if you drive under normal conditions and use Mobil 1 Extended Performance in your vehicle, the oil is guaranteed to protect your engine for 15,000 miles. We also recommend that drivers consult their owner’s manual while their vehicle is under warranty, and follow the guidelines set forth there. Additionally, we recommend that if consumers drive routinely in severe conditions that they follow the oil change interval recommended in their owner's manual for severe conditions. We define "severe conditions" as:
*racing or commercial applications;
*frequent towing or hauling;
*extremely dusty or dirty conditions; or
*excessive idling.
I'm going to let it ride... I've got the Mobil extended interval filter in the truck too. I set my trip odometer and am keeping count.
Again... if I didn't run track events I'd just follow the DIC on the Corvette.
BTW oil color means nothing these days... syn oil gets dark quickly
Oh.. Amsoil has been advertising extended drain intervals for years... I believd 25k or once per year.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
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From: Minnesota
OK got the technical response from Mobile 1 I was looking for (OK not technical at all but indeed what I was really looking for):
I assume it's not listed on the bottle as it's a new certification and they using the rest of the old containers before they use the new bottles with GM4718M printed on it.
Not sure why they don't have it listed on the website though, it's a quick fix there.
Thank you for your inquiry,
Mobil1 Extended Performance 5W30 and 10W30 motor oils do meet the
GM
4718 standard.
--
Thank you for choosing ExxonMobil products.
If you need further assistance, please contact ExxonMobil at
1-800-ASK-MOBIL
-Matt Jacob
Mobil1 Extended Performance 5W30 and 10W30 motor oils do meet the
GM
4718 standard.
--
Thank you for choosing ExxonMobil products.
If you need further assistance, please contact ExxonMobil at
1-800-ASK-MOBIL
-Matt Jacob
I assume it's not listed on the bottle as it's a new certification and they using the rest of the old containers before they use the new bottles with GM4718M printed on it.
Not sure why they don't have it listed on the website though, it's a quick fix there.
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Racer
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Oh no! Are you going to flush your system entirely??!!! I heard you can NOT mix the two oils at all!!!!! So even if you drain and re-fill with regular mobile 1 you are looking at lots of trouble. No matter what you do you are screwed.
Race Director
Joined: Mar 2007
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From: Marlton. Increasing performance one speeding ticket at a time! NJ
That's it, engine is done. Time for another one!
I really don't think the oil makes a big difference, even non-synthetic. TransAms and Camaros also had the same LS1 engine, but didn't require GM4718M. Ask yourself why?
I really don't think the oil makes a big difference, even non-synthetic. TransAms and Camaros also had the same LS1 engine, but didn't require GM4718M. Ask yourself why?
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
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From: Minnesota
Yeah, I was probably overly-concerned about it. Although I did read that some people that use it have a louder engine upon startup.
Also some people contacted Mobile 1 early on and they told them basically that they can't use it. The contacts at Mobile 1 were just relaying the correct information at the time (as the GM certification wasn't done at the time perhaps), but now the oil has gone through the GM certification process.
Actually I wonder why GM has its own special standard for oil anyways as I don't believe even Porsche has one. Not that Porsche engines are better, but if any car manufacturer is going to have one you would think an automobile as expensive as some of the Porsche vehicles would have one.
Last edited by reactor2; Apr 30, 2007 at 12:40 PM.
Race Director
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From: Kali
St. Jude Donor '11
The only reason it doesn't meet that GM spec is probably because Mobil 1 EP is claimed at 15k miles. GM doesn't want to deal with the extended intervals. M1 EP > M1 end of story...
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