Which oils keep things cleaner?

[dave1251]

Originally Posted by slomo
So back to the OP's question. Rislone is the best for engine cleanliness by far. Great grand pa used it, grand pa used it, dad uses it and I do too. Tried and true, been around for decades for a reason. Our oil is so clean, when we change it, you have to step outside in the sun to make out the oil level on the stick.

slomo



Sure bud. Let us know when you return to reality with Grand Pa, Grand Pa.

 

[53' Stude]

Originally Posted by OVERKILL
Originally Posted by slomo

Nor was it advertised in the links you provided.

The Exxon link you provided, that spectrasyn 8 is a base stock only. Not bottled Mobile 1 oil we can buy at walmart. So again, someone please show us where ANY USA made Mobile 1, ANY flavor of Amsoil, Royal Purple or any other brand are truly group 4 or 5 oils. Redline and Motul are real synthetics/ group 4 or 5.

Why is it not advertised on their bottles? Guess in the States, all they need is that fabulous word "synthetic". That will fool 99% of us for sure.

slomo


MSDS for M1 EP 0w-20. There are a variety of other grades and products that also have varying amounts of PAO in them. This one shows 60-70%.



OVERKILL: thanks for the info

Does M1 have link showing this for say M1 afe 0w30 and other grades. Thanks in advance

 

[dave1251]

Originally Posted by 53' Stude
Originally Posted by OVERKILL
Originally Posted by slomo

Nor was it advertised in the links you provided.

The Exxon link you provided, that spectrasyn 8 is a base stock only. Not bottled Mobile 1 oil we can buy at walmart. So again, someone please show us where ANY USA made Mobile 1, ANY flavor of Amsoil, Royal Purple or any other brand are truly group 4 or 5 oils. Redline and Motul are real synthetics/ group 4 or 5.

Why is it not advertised on their bottles? Guess in the States, all they need is that fabulous word "synthetic". That will fool 99% of us for sure.

slomo


MSDS for M1 EP 0w-20. There are a variety of other grades and products that also have varying amounts of PAO in them. This one shows 60-70%.



OVERKILL: thanks for the info

Does M1 have link showing this for say M1 afe 0w30 and other grades. Thanks in advance



About 20%. You can look it up on the Mobil One page in Safety Data Sheet.

 

[OVERKILL]

Originally Posted by dave1251
Originally Posted by 53' Stude
Originally Posted by OVERKILL
Originally Posted by slomo

Nor was it advertised in the links you provided.

The Exxon link you provided, that spectrasyn 8 is a base stock only. Not bottled Mobile 1 oil we can buy at walmart. So again, someone please show us where ANY USA made Mobile 1, ANY flavor of Amsoil, Royal Purple or any other brand are truly group 4 or 5 oils. Redline and Motul are real synthetics/ group 4 or 5.

Why is it not advertised on their bottles? Guess in the States, all they need is that fabulous word "synthetic". That will fool 99% of us for sure.

slomo


MSDS for M1 EP 0w-20. There are a variety of other grades and products that also have varying amounts of PAO in them. This one shows 60-70%.



OVERKILL: thanks for the info

Does M1 have link showing this for say M1 afe 0w30 and other grades. Thanks in advance



About 20%. You can look it up on the Mobil One page in Safety Data Sheet.


Yup, this.

 

[KneeGrinder]

Originally Posted by PimTac
It's Mobil, not Mobile.


All these years, I always thought my dividend payments said Exxon/Mobile...lol, they are not based in Mobile, Alabama?

Originally Posted by dave1251
I see you are unable to gather information and make a educated conclusion.


"Not a comment about this post or thread, but this is worthy of putting in a sig line"

 

[OilUzer]

Originally Posted by SonofJoe
If you really want to keep your engine clean, use a decently specced, heavy Group II based HDDO monograde.

The main culprit in laying down most deposits is the polymeric viscosity index improvers you have in all multigrades. Take away the VII & it's bye bye dirty pistons! By going heavy (eg SAE 40) you'll keep the oil's Noack volatility to a minimum so you'll minimise
base oil vapour recycling through the PCV system, burning & gunking up your pistons that way. If you can find the monograde version of an oil brand that also exists as a multigrade, you can generally assume it's massively over formulated in terms of its DI additive content (which is no bad thing).

Having said that, keeping your engine clean is only one of many considerations when you're trying to formulate a 'balanced' oil. Personally I'd try to avoid obsessing about it!





Is it the shearing of the polymers or the evaporation of it that does the most damage? or do polymers by nature cause more deposits regardless of breaking down or not?

Thanks

 

[SonofJoe]

It's really the nature of VII polymers. In many respects it's all a question of molecular weights.

Base oils (both mineral & synthetic) have MWt's around the low hundreds. They're small, compact & relatively stable under high temperature, high shear conditions.

Additives like ZDDP, Antioxidants & Detergents have MWts in the high hundreds & are also stable. Ashless Dispersants are polymeric in nature but have MWt's in the low thousands; typically less than 3000. They too are stable.

However VII polymers have extremely high MWt's, typically upwards of 40,000 with this number going higher for the high SSI VIIs beloved by the US. It's this combination of high MWt & long chain length which makes VIIs prone to both physical & thermal fracture & chemical cracking. This often manifests itself as carbon deposit formation on the piston's top land & in the top groove (where the piston is hottest). VII related deposits tend to be more pronounced on diesel engines as the pistons run that much hotter.

The volatility thing is sort of a different mechanism for creating deposits but as with all things oily, everything interacts with everything else. However what you can say for sure is that a monograde will never contain VII & for a given oil weight, will always have a lower Noack than a multigrade which is why, cleanliness-wise, they're so good.

 

[Kamele0N]

@SoJ...

Why hassle with HD30/40 oils wich are pretty uncommon (except in farm/lawn stores)...when we evidently see (VOA / UOA section) that modern day PCMO A3/B4 /C3 synthetics are doing its cleaning job flawlessly?

 

[SonofJoe]

You're quite right of course. Most oils are going to be just fine. I personally don't worry about the state of my car's innards as long as it keeps on going!

However I interpreted the OP's question as a 'what's the most ideal oil for keeping your engine clean' & I gave him that answer.

 

[slomo]

Originally Posted by dave1251
Originally Posted by slomo
So back to the OP's question. Rislone is the best for engine cleanliness by far. Great grand pa used it, grand pa used it, dad uses it and I do too. Tried and true, been around for decades for a reason. Our oil is so clean, when we change it, you have to step outside in the sun to make out the oil level on the stick.

slomo



Sure bud. Let us know when you return to reality with Grand Pa, Grand Pa.


Your wisdom helps everyone here dave1251.

slomo

 

[dave1251]

Originally Posted by slomo


Your wisdom helps everyone here dave1251.

slomo


Happy to help especially you.