Mobil 1 can clean all sludge within one OCI
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Never doubted this with MB-1. Where are you Tig?
Good way to blow an engine.
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gathermewool
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That's not really that much sludge. I'd say changing the oil on time is what cleans up most slightly neglected engines.
I agree, and if you have a sludge monster, you don't want that sludge to all go into solution all at once.
One thing I have always known to be true about M1 is just how clean it keeps your internals. I don't doubt most stuff thesedays does, but perhaps M1 is the best choice for a cleanup oil for a newly bought used car or something.
While I'm sure M-1 does clean a dirty engine, I doubt it will do so in just one oil change.
The photos look more like just dirty oil, not sludge.
The photos look more like just dirty oil, not sludge.
I wish I could click on those pictures and see them full screen...
I also wish they were in focus... Oh well.
Disclaimer: I am running 0w-40 in the BMW and I like it.
I also wish they were in focus... Oh well.
Disclaimer: I am running 0w-40 in the BMW and I like it.
In the bottom-end pics, is that circular item in the center of the engine the oil pickup? If so, I'd say that that is impressive. But I'd like to see more.
Originally Posted By: crw
In the bottom-end pics, is that circular item in the center of the engine the oil pickup? If so, I'd say that that is impressive. But I'd like to see more.
Thats what it looks like to me.
In the bottom-end pics, is that circular item in the center of the engine the oil pickup? If so, I'd say that that is impressive. But I'd like to see more.
Thats what it looks like to me.
People overlook one important thing though. Cleaning ability of an oil contradicts its antiwear ability. This is because the antiwear additives and detergents fight for the same metal surfaces. The same detergents that clean the metal surfaces will also etch away the protective films of ZDDP and moly.
For that reason, an engine that is too clean may be a bad thing, as the cleaning ability vs. antiwear ability of an oil is always a compromise. You should start worrying if your engine looks too clean because it could be metal directly rubbing against metal with little antiwear-additive film present.
This is not to say that Mobil 1 is not carefully formulated not to etch away the ZDDP and moly films while it etches away the oil varnish, but just keep the compromise between the cleaning ability and antiwear ability of an oil in mind.
For that reason, an engine that is too clean may be a bad thing, as the cleaning ability vs. antiwear ability of an oil is always a compromise. You should start worrying if your engine looks too clean because it could be metal directly rubbing against metal with little antiwear-additive film present.
This is not to say that Mobil 1 is not carefully formulated not to etch away the ZDDP and moly films while it etches away the oil varnish, but just keep the compromise between the cleaning ability and antiwear ability of an oil in mind.
Yeah I'm very much aware of that. It's finding that balance and what you're going after that matters most.
In M1's case, it's always been extremely good at high temperature deposits and cold flow, but showed higher Fe wear maybe as a result. Today's synthetics have caught up to M1 performance though. PU especially. It's now a silly marketing game. Mobil 1's website and marketing have always been the most professional.
In M1's case, it's always been extremely good at high temperature deposits and cold flow, but showed higher Fe wear maybe as a result. Today's synthetics have caught up to M1 performance though. PU especially. It's now a silly marketing game. Mobil 1's website and marketing have always been the most professional.
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Originally Posted By: Gokhan
People overlook one important thing though. Cleaning ability of an oil contradicts its antiwear ability. This is because the antiwear additives and detergents fight for the same metal surfaces. The same detergents that clean the metal surfaces will also etch away the protective films of ZDDP and moly.
For that reason, an engine that is too clean may be a bad thing, as the cleaning ability vs. antiwear ability of an oil is always a compromise. You should start worrying if your engine looks too clean because it could be metal directly rubbing against metal with little antiwear-additive film present.
This is not to say that Mobil 1 is not carefully formulated not to etch away the ZDDP and moly films while it etches away the oil varnish, but just keep the compromise between the cleaning ability and antiwear ability of an oil in mind.
I`ve always wondered this as well. BuickGN (who used to post here) always said engines that used conventional oil showed less wear vs engines that used synth oil. He got his info by doing actual engine teardowns (and not via uoa`s).
People overlook one important thing though. Cleaning ability of an oil contradicts its antiwear ability. This is because the antiwear additives and detergents fight for the same metal surfaces. The same detergents that clean the metal surfaces will also etch away the protective films of ZDDP and moly.
For that reason, an engine that is too clean may be a bad thing, as the cleaning ability vs. antiwear ability of an oil is always a compromise. You should start worrying if your engine looks too clean because it could be metal directly rubbing against metal with little antiwear-additive film present.
This is not to say that Mobil 1 is not carefully formulated not to etch away the ZDDP and moly films while it etches away the oil varnish, but just keep the compromise between the cleaning ability and antiwear ability of an oil in mind.
I`ve always wondered this as well. BuickGN (who used to post here) always said engines that used conventional oil showed less wear vs engines that used synth oil. He got his info by doing actual engine teardowns (and not via uoa`s).
Originally Posted By: aquariuscsm
Originally Posted By: Gokhan
People overlook one important thing though. Cleaning ability of an oil contradicts its antiwear ability. This is because the antiwear additives and detergents fight for the same metal surfaces. The same detergents that clean the metal surfaces will also etch away the protective films of ZDDP and moly.
For that reason, an engine that is too clean may be a bad thing, as the cleaning ability vs. antiwear ability of an oil is always a compromise. You should start worrying if your engine looks too clean because it could be metal directly rubbing against metal with little antiwear-additive film present.
This is not to say that Mobil 1 is not carefully formulated not to etch away the ZDDP and moly films while it etches away the oil varnish, but just keep the compromise between the cleaning ability and antiwear ability of an oil in mind.
I`ve always wondered this as well. BuickGN (who used to post here) always said engines that used conventional oil showed less wear vs engines that used synth oil. He got his info by doing actual engine teardowns (and not via uoa`s).
It's definitely possible. I wouldn't be surprised in some instances if that was the case.
Originally Posted By: Gokhan
People overlook one important thing though. Cleaning ability of an oil contradicts its antiwear ability. This is because the antiwear additives and detergents fight for the same metal surfaces. The same detergents that clean the metal surfaces will also etch away the protective films of ZDDP and moly.
For that reason, an engine that is too clean may be a bad thing, as the cleaning ability vs. antiwear ability of an oil is always a compromise. You should start worrying if your engine looks too clean because it could be metal directly rubbing against metal with little antiwear-additive film present.
This is not to say that Mobil 1 is not carefully formulated not to etch away the ZDDP and moly films while it etches away the oil varnish, but just keep the compromise between the cleaning ability and antiwear ability of an oil in mind.
I`ve always wondered this as well. BuickGN (who used to post here) always said engines that used conventional oil showed less wear vs engines that used synth oil. He got his info by doing actual engine teardowns (and not via uoa`s).
It's definitely possible. I wouldn't be surprised in some instances if that was the case.
Is it me, or are those pics look exactly the same, cleanliness wise, except the ones that supposedly have been cleaned by M1 are just dry and don't have a dirty oil film on them?
Seems totally bogus. That looks more like cold dirty oil than sludge.
Whoever came up with this gimmick is about as convincing as the average congressperson.
Whoever came up with this gimmick is about as convincing as the average congressperson.
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Originally Posted By: volk06
So if M1 was a 9.7 on a scale of 1-10 for engine cleanliness..... Pennzoil ultra cleans 25% better, so that means PU is at staggering 12.425 - off the chart! Guess nothing does keep your engine closer to factory clean! lol
Maybe maybe not.
Reference oil is a 9.50, M1 is a 9.70 and Ultra is 9.75.
That would also be 25% better than M1.
So if M1 was a 9.7 on a scale of 1-10 for engine cleanliness..... Pennzoil ultra cleans 25% better, so that means PU is at staggering 12.425 - off the chart! Guess nothing does keep your engine closer to factory clean! lol
Maybe maybe not.
Reference oil is a 9.50, M1 is a 9.70 and Ultra is 9.75.
That would also be 25% better than M1.
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