Mobil 1 0w20 hm or pp 0w20 sludge cleaning ability
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With the advent of dexos1Gen2 specifications, which is pretty much what you’ll find on the shelves these days, both Mobil1 and Pennzoil Platinum products (and most others) are now similar with relatively low calcium and relatively high magnesium. So don’t let that distinction influnce your choice.
High-Mileage oils are generally advertised as having superior cleaning abilities as may be appropriate for older engines. So Mobil1 0w-20 HM could be a better choice, but I doubt there’s much difference.
High-Mileage oils are generally advertised as having superior cleaning abilities as may be appropriate for older engines. So Mobil1 0w-20 HM could be a better choice, but I doubt there’s much difference.
JAG did some testing in this thread which shows the M1 having poor cleaning ability due to its large PAO content.
Originally Posted By: 1JZ_E46
JAG did some testing in this thread which shows the M1 having poor cleaning ability due to its large PAO content.
Good comment, PAO keeps parts separated but cant clean anything they need to add other base oils just so they can put add packs in then there is the cleaning the oil is supposed to do.
JAG did some testing in this thread which shows the M1 having poor cleaning ability due to its large PAO content.
Good comment, PAO keeps parts separated but cant clean anything they need to add other base oils just so they can put add packs in then there is the cleaning the oil is supposed to do.
I have no good information to use to determine which oil will clean better. I think you should pony up the extra money and use Amsoil Signature Series. If you do it, keep an eye on any parts in the engine with deposits that you can inspect, such as when you look through the oil fill hole. You want to see if it is making a difference and if so, how much. Also keep an eye on the oil color. If it gets really dark, change it. Very well-aged and hard deposits will likely never come off.
There is also the solvent approach, but that brings more risk than using very good motor oil and effectiveness is not a guarantee. Kreen is a strong solvent that some people have used.
There is also the solvent approach, but that brings more risk than using very good motor oil and effectiveness is not a guarantee. Kreen is a strong solvent that some people have used.
No oil will do much cleaning. They "Keep engines clean" but don't remove what is already there.
PAO and GTL are similarly very non-polar. Engine deposits are relatively polar, so PAO and GTL by themselves have a lousy ability to clean engine deposits. They rely completely on detergents and dispersants and if present, other more polar base oils. I believe that motor oils that are decent cleaners are rare and typically (not always) more expensive than the run-of-the-mill synthetics sold by the major motor oil blenders. I’m still in the process of investigating this. Motor oil keeping an engine at a certain high degree of cleanliness is a lot easier than cleaning one that isn’t clean. The cheaper oils that meet little or no more than the just latest API and ILSAC specs. are pretty good at keeping clean engines quite clean, assuming appropriate oil change intervals are followed and the engine isn’t a sludge-monster. I said it before, just buy Amsoil Signature Series, and make your quest easier and more likely to give you the results you want. Castrol 0W-40 is another oil I’d recommend for cleaning but the downside is it rather viscous for engines that call for an xW-20 oil, hurting fuel economy a little. If you insist on store-bought oil, use Castrol 0W-40.
I have used Mobil 1 or pennzoil platinum 0w20 full synthetic from last 1 year before pennzoil high mileage conventional oil 5w20 from roughly 2012 to 2016. When I see fill hole in engine I see light black varnish around and think if any particular oil clean engine better then other major brand of oil thank you.
Amsoil Engine Flush may be a good option for you.
As far as M1 oils, it’s strange that the regular Mobil 1 product data sheets are the only tier that specifically state “exceptional cleaning power.”. Those words are not used in the AFE/EP and HM PDS.
As far as M1 oils, it’s strange that the regular Mobil 1 product data sheets are the only tier that specifically state “exceptional cleaning power.”. Those words are not used in the AFE/EP and HM PDS.
https://www.mobil.com/english-us/passenger-vehicle-lube/pds/glxxmobil-1-5w20
" by providing exceptional wear protection, cleaning power "
" by providing exceptional wear protection, cleaning power "
All the brands are going to tell us they are superior, exceptional, outstanding etc. I haven’t seen a oil advertisement yet that said it provided adequate, standard or fair to middling cleaning and protection. Marketing buzzwords are the norm in advertising.
Earlier it was mentioned that oils do well keeping the inside of a engine clean. Once varnish and sludge appear it would seem stopping further accumulation is the key.
There used to be oils noted for cleaning. The old PYB for example. Today’s oils seem to be almost all alike with the new specs.
Earlier it was mentioned that oils do well keeping the inside of a engine clean. Once varnish and sludge appear it would seem stopping further accumulation is the key.
There used to be oils noted for cleaning. The old PYB for example. Today’s oils seem to be almost all alike with the new specs.
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Originally Posted By: PimTac
There used to be oils noted for cleaning. The old PYB for example.
I believe that was "claimed" rather than noted. I don't recall anybody ever proving it, it was simply parroted here, similar to how it was supposed to have GTL in it too at one point, despite the official SOPUS Q&A stating quite the contrary.
There used to be oils noted for cleaning. The old PYB for example.
I believe that was "claimed" rather than noted. I don't recall anybody ever proving it, it was simply parroted here, similar to how it was supposed to have GTL in it too at one point, despite the official SOPUS Q&A stating quite the contrary.
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