Ironman88

If you're a fan of this product, you may want to watch this short video and reconsider your oil choice...

Graufuchs

I haven't used Mobil 1 since the early 2000's.

Plenty of other better options (higher friction reducers) out there LiquiMoly, Motul and Driven.

workhurts

So 5 mins to say higher calcium and an image that has nothing to do with the video?

Ironman88

Maybe that's all you took away from it.

The key takeaway for me was the older formulation high detergent content in this oil contributes to LSPI in DFI engines.

LSPI is already a concern in the DFI 997.2 engine - and the higher detergent content in this oil increases the risk of it happening.

In addition, the UOA consistently showing this oil shears down significantly below grade. Bottom line - in a 997.2, it's an inferior choice.

groovzilla

Been using LiqiuMoly for a long time.
Mobil 1 used to be the thing but not for a long time.

ADias

I doubt LSPI is a problem in a 3.6/3.8L engine, unless the driver is incompetent.

There are always conflicts of interest behind the posting of these videos. Sure there are better oils (perhaps) but M1 cannot be so bad as there are millions using it without issues.

I am not a Exxon-Mobil stockholder or use M1, but I would not trash their products to that extent.

Bruce In Philly

2009 C2S 197K miles

Who said alternative brands are low calcium? I think a relevant question is "what is mandated in the Porsche A40 oil specification and what are the allowed ranges/alternative formulations (if any)?". I use Liqui Moly Leichtlauf 5W-40, an A40 oil, and my analysis shows 2754 PPM of calcium... not as high as new Mobil 1 0W-40, but this is after 5K miles so I am not sure how much is used up... or how much it started out with.

I chose to start out with A40 because... well... I dunno... seemed like a good thing to start out with, and I add CeraTec for added Moly and that magical mystery stuff, ceramic. There is more going on with makes, brands, and particular formulations than to just generalize about Mobil 1 or any other brand.

Peace
Bruce in Philly (now Atlanta)

ADias

Bruce: Current Leichtlauf 5W40 stock has lower Ca (from 2500 to 1780) and higher Mg (from 24 to 580), both detergents. For what we know M1 is changing too.

Ironman88

I usually respect your perspective, but I think your last point is an exaggeration based on what is actually presented in the video.

He does not trash Mobil 1 0W-40. He advises against it in a DFI engine.

MrMoose

It's mostly internet scaremongering. Mobil1 0W-40 is SN+ & SP rated, that means it's passed the latest LSPI testing. Porsche also used (uses?) it as factory fill and it's one of their A40 listed oils. The cognitive dissonance between "Porsche has amazing engineering and makes the best cars" and "these cars will explode if you even wave the wrong bottle of oil near them and also Porsche uses and recommends crappy oil" on this forum is mind-boggling sometimes.

And yet there's no evidence that that makes any significant difference in wear. It's a great example of people playing in the nose of the data: the wear numbers or some other value fluctuates a bit and people convince themselves it's significant. Why is being slightly low on the arbitrary line between 40wt and 30wt an issue? Why 40wt particularly then? If more viscosity is better, shouldn't you be running 50wt?

I mean, you've literally got Blackstone telling people that they've never seen any significant difference between brands, and yet people insist on using their UOA numbers to try to convince themselves they need some magic motor oil which is almost certainly made by one of the major companies anyway. But, hey, what does Blackstone know? They've only got thousands and thousands of data points, right?

https://www.blackstone-labs.com/which-oil-to-use/

"The only difference between these products and the major company brands is the name on the container and the price. Don’t believe us? Try running your own experiment: do a sample on Oil A after a known number of miles, then do a sample on Oil B and compare the wear levels. You may see a little fluctuation, but it’s very rare for one oil to make a significant difference in an engine’s wear patterns. "

ADias

I have to disagree. These videos have an agenda behind them.

Ironman88

Ok. Disagree all you want.

But the fact is that he does not trash Mobil 1 in the video.

Bruce In Philly

Ah.... vitriol.... now we have a real oil thread.

The vid shows Mobil 1 and a blown piston... and the piston isn't smiling.

I am surprised Mobil lawyers tolerate that.

Peace
Bruce in Philly ( now Atlanta)

MrMoose

True, he recommends against it in DFI engines based on the calcium level potentially causing LSPI. Two issues with that:

1) API SN+ and SP test for LSPI performance, so if the oil passes then why does the calcium level matter? Oil manufacturers are likely adding specific additives to prevent LSPI these days, so just looking at the calcium level doesn't tell you the whole story.

Like halfway through the video he says "you should buy SP oils because they test for this". Mobil 1 0W-40 is API SP.

2) From everything I've read about it, LPSI is only of concern in turbocharged DFI engines due to their higher combustion chamber pressures. So unless you've got a turbo it's probably not even relevant. You seeing a lot of knock events in your code reader? No? Then why the heck are you worrying about it?

ADias

True, and especially a problem with small high compression engines. Not the case with a 997.2 3.6/3.8L engine unless the driver lugs it… This topic (LSPI) comes around periodically and it has long been dismissed for these engines, when driven properly.