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Facts about M1 and Castrol Edge

Daryl LBZ

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Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
Posted

Does anyone have any Lab Reports for their engines running Mobil 1 or Castrol Edge? I've been thinking about switching from Mobil 1 to Castrol Edge, but was trying to get an idea if it would be worth it or not? I've been hearing that M1 has been causing extra engine wear lately compared to what it used to, but haven't seen any facts on this. I've also heard that Mobil 1 EP is a higher rated oil versus the regular Mobil 1 so I may just switch to that idk? I guess the talk of more engine wear with M1 is due to a change in their formula, but I haven't seen any facts on this either. Anyone have any info?

Chris Senior Enthusiast

Chris

Posted
Posted

Now that I have an engine that has 40k versus the 4.8 with 110k, I ran M1 high mileage. Right now I have regular M1 and will put M1 EP in next

 

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Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
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All I have used the past 5 or so years is Mobil 1, but I also like Castrol a lot, but quit using it whenever I went Synthetic. Now that they have Edge and it's been out a few years I've been debating on trying it.

Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
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Go over to Bob Is The Oil Guy.

 

 

That's where I was reading about the rumors of Mobil 1 changing their formula and not preventing wear as much. Guess I'll look around some more.

  • 4 weeks later...
foghorn23 Senior Enthusiast

foghorn23

Posted
Posted

Daryl,

 

There was a time that Mobil 1 was returning higher levels of iron in the used oil analysis reports I read at BITOG. However, it seems like I haven't seen as many lately, which makes me think if there ever was a problem, Mobil got a handle on it. I posted a link to this info in another thread, but the Petroleum Institute of America did an analysis of top name brand and store brand synthetic 5W-30's a few months back. The Castrol syn had a really good TBN which is an indication of the amount of additive, but it wasn't as good as others in cold temp performance. If those concerned about oil burning are looking the Shell products (Pennzoil, Quaker State and Shell) had some of the lowest NOACK volatility numbers. In all honesty with just about any of the oil's reviewed your truck would be set for many oil related trouble free miles. If you're happy with Mobil 1 I wouldn't worry one second about continuing to use it. It may not be the absolute best in every category, but it's tough to beat overall. As for me I think I've settled on Pennzoil Platinum.

 

http://www.pqiamerica.com/March2013PCMO/Marchsyntheticsallfinal.html

Daryl LBZ Senior Enthusiast

Daryl LBZ

Posted
  • Author
Posted

Well, I was going to try out a few different brands of oil like the Pennzoil Platinum, and Castrol Edge, but I decided to give Mobil 1 Extended Performance a shot. I like the Mobil 1 so I figured there wouldn't be a problem using EP. If we had the Pennzoil Ultra around here I would have definitely given it a shot before getting the M1 EP.

 

From what I have seen on Bob is the oil guy there isn't much difference between the synthetic oils anymore, they are all just about as good as the other. So pretty much whatever I wanted to run would be fine.

foghorn23 Senior Enthusiast

foghorn23

Posted
Posted

Well, I was going to try out a few different brands of oil like the Pennzoil Platinum, and Castrol Edge, but I decided to give Mobil 1 Extended Performance a shot. I like the Mobil 1 so I figured there wouldn't be a problem using EP. If we had the Pennzoil Ultra around here I would have definitely given it a shot before getting the M1 EP.

 

From what I have seen on Bob is the oil guy there isn't much difference between the synthetic oils anymore, they are all just about as good as the other. So pretty much whatever I wanted to run would be fine.

 

 

^^This^^

 

Mobil 1 EP should be an EXCELLENT choice. Like you I wish Pennzoil Ultra wasn't so hard to get/expensive anymore.

zach1990 Senior Enthusiast

zach1990

Posted
Posted

I don't have any lab results but I'm on the stock motor with 312k miles and all I've ever used is castrol gtx 10w-30. Tried the synthetic but this old engine can't keep it in it. My dads 04 sierra is approaching the 300k mark and he only uses gtx.

 

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SLong Enthusiast

SLong

Posted
Posted

I have a 2011 Z71 with 74,000 miles on it. I've run Mobil 1 Full Synthetic since day one. At what mileage would you guys recommend switching to the Mobil 1 Full Synthetic High Mileage, or should I just stick with what I have been using? I change it myself every 6,000 miles, sometimes 6,500. I know they say you can go longer than that, but I can't bring myself to do it. Thanks for any feedback.

Z45 Senior Enthusiast

Z45

Posted
Posted

Just a note about Mobil EP. See disclaimers on label next to the *

 

Not saying anything negative about Mobil 1 but it does not recommend 15,000 miles if you fall under those conditions, severe service.

 

DSC00180_zpsf4572951.jpg[/url]

Chris Senior Enthusiast

Chris

Posted
Posted

I'll just go by the DIC. It usually takes me 10000 miles before it hits 0%

 

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Daryl LBZ Senior Enthusiast

Daryl LBZ

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I'll just go by the DIC. It usually takes me 10000 miles before it hits 0%

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That's how long I'm going to run mine for, and send it in for an oil analysis.

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