Originally Posted By: CATERHAM
Nice try but using using your simplistic "halving formula" would make M1 0W-20 lighter than Sustina 0W-20 even at -35C
OK, you need to explain your logic here.
According to this thread:
http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2818344
The MRV for Sustina 0w-20 is 9,620cP.
According to this PDS:
https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-advanced-fuel-economy
The MRV for M1 0w-20 is 9,200cP
So yes, the MRV for the Mobil 1 product is lower. What data do you have that contradicts this? Or is going to be one of your typical claims where you never present anything to support it?
Originally Posted By: CATERHAM
when in fact the opposite is the case.
So, if this is a fact, can you please present a data sheet or MRV data at temperatures above -40C that supports your claim. Your claim, you need to back it up. You saying something is or isn't the case is nowhere near enough here.
Originally Posted By: CATERHAM
And extrapolating further things get even further out of whack since Sustina is a whopping 50% lighter at 0C than M1.
According to what, your VI calculator? I doubt you have actual visc measurements for both lubricants, am I right? Also, we've seen data sheets that support halving up to -15C, I'm sure above that (and I've stated as such) there is our crossover where the polymers take over and and the oil becomes thinner at a faster rate. This would make sense when comparing a PAO-based lubricant which is relying on the natural VI of the base stocks, which will have a much more linear viscosity plot than something that is using lighter bases and more VII.
Apply some logic and common sense here CATERHAM. Shannow has shown the plot of two base oils with the same VI, one being PAO the other being Group III and the difference in how they plotted below 0C was dramatic. Apply the same plotting technique to these products and it is very easy to see why two oils will yield very different curves depending on how they are based even if the one that has the more dramatic thickening is actually thinner above 0C and has a higher VI.
Originally Posted By: CATERHAM
And yes TGMO which is 40% lighter than M1 at 0C is clearly superior to 99.99% of users where MRV has ZERO relevance. And TGMO is approved for every manufacturer that specifies an API 0W-20 which is all the Japanese manufacturers.
You must be an awesome salesman, I love how you switch over to percentages to make numbers sound bigger, LOL! You'll downplay the 25,000cP difference between the RP 0w-20 and M1 0w-20 (and Sustina 0w-20 and probably many others) but you'll hype up a calculated visc value by converting to a percentage so that a number like 10cSt all of a sudden sounds far larger than it is.
TGMO has the basic API approval. That's it. You can try to make that sound more fancy than it is (another sales technique) with your verbiage but ultimately it is just Group III synthetic with a high viscosity index. Whoopdie doo. Any other mainstream 0w-20 on the market has more OEM approvals than this oil, including the AFE product with both Ford and GM approvals along with the ACEA stuff.