Thoughts on 0-20W Oil?

⋯ I think a reason that OEMs say use 5w-30 in other countries is because 0w-20 might not be as available there
No, this definitely isn’t the case. You can find any viscosities of oil, including Toyota’s 0W-16 oil, and many different brands of oil you may not have seen here in other countries.
 
Does Canada have CAFE too?
On a second thought, using 0W-20 in Canada would make more sense due to a colder climate. I live in South Texas, 11 months a year is summer time and then a week, maybe two weeks with close to freezing temperatures, rarely below freezing. When I bought the car I was using 0w-20 and after 2.500-3.000 miles (4.000-4.800 km) I felt a significant decrease in performance. I've even had instances when I would get the oil light before the regular 5.000 miles oil change. That's when I started to look into it. Why, why do I have to go to do an oil change every 5.000 miles? Too soon and due to excessive temperatures in the summer time, even sooner! And here I am today, using 5W-30, no more 0W-20 for me. If I'll ever move up north, then I would consider changing back to 0W-20 but here, for me, 5W-30 works perfect and now I do oil change at 7.500 miles. So fewer trips to the dealer and less money spent.
 
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No, this definitely isn’t the case. You can find any viscosities of oil, including Toyota’s 0W-16 oil, and many different brands of oil you may not have seen here in other countries.
Haven't Toyota 0w-8 and 0w-16 oils been used in Japan before they make it out to the US? CAFE isn't a thing there
 
Looks like 0W-16 started to be used in Japan in late 90s...or development started



Some interesting info in this link too

 
My 2014 Touring had dealer oil changes until 5/60 powertrain warranty expired. After that I did a few 0w-20 oil changes myself and then went 5w-30. Quieter and smoother, no comparison. No more 0w-20. My agenda for a quieter, long lasting engine doesn't line up with the thinner oil/CAFE blather aimed at the US market.
For those who desire a thinner oil that pumps well at low temperature but still want a thicker oil at operating temperatures, consider a 0w-30. I'm highly considering trying out Mobil 1 0w-30 ESP. It has a pretty low pour point for low temperature pumpability and an operating temperature viscosity that borders on the thicker side at almost a 40 weight. Having a smaller viscosity "spread" than a 0w-40, it has less/no VII's (Viscosity Index Improvers) to shear down. Also understand it has a good dose of esters (group 5 synthetic) which have good cleaning ability and contribute to really smooth running.
 
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I was impressed by the cold flow tests of Pennzoil Ultra Platinum 5W-30 (they don't make a 0W-30). Also, you want an oil that uses some boron as a friction reducer because it starts to work at lower temperatures than molybdenum.
 
Does Canada have CAFE too?
Yes and no.
Canada does have its own regulations for greenhouse gas emissions from vehicles, which are largely harmonized with the US CAFE standards. However, the Canadian regulations are specifically referred to as the Passenger Automobile and Light Truck Greenhouse Gas Emission Regulations. These regulations set limits on carbon dioxide emissions per mile for each manufacturer's vehicle fleet. Canada focuses more on emissions and vehicle size (footprint) rather than gas mileage, but overall, Canada is pretty much aligned with the US.
It's also easier for car manufacturers to build their cars the same for both countries. Canada is not really big enough for car makers to build exclusive models just for the Canadian market, (although it's been tried in the past.) Having said that, some makers will assign slightly different model names or numbers to Canadian cars.
My Stinger is a good example. We could only get the V6 AWD model here, and it was designated as a GT Elite or Premium. In the US, there were more Stinger options, including the cheaper 4 cyl version. They also called the higher end model the GT2 in the US. Same car, different designation.
 
My 2014 Touring had dealer oil changes until 5/60 powertrain warranty expired. After that I did a few 0w-20 oil changes myself and then went 5w-30. Quieter and smoother, no comparison. No more 0w-20. My agenda for a quieter, long lasting engine doesn't line up with the thinner oil/CAFE blather aimed at the US market.
For those who desire a thinner oil that pumps well at low temperature but still want a thicker oil at operating temperatures, consider a 0w-30. I'm highly considering trying out Mobil 1 0w-30 ESP. It has a pretty low pour point for low temperature pumpability and an operating temperature viscosity that borders on the thicker side at almost a 40 weight. Having a smaller viscosity "spread" than a 0w-40, it has less/no VII's (Viscosity Index Improvers) to shear down. Also understand it has a good dose of esters (group 5 synthetic) which have good cleaning ability and contribute to really smooth running.
Mobil 1 is crap.

Guys who ran Mobil 1 and Castrol on the BMW forums would get this cream coloured gunk building up in the insides of their oil caps. Myself included. Went away upon switching to a different brand
 
Mobil 1 is crap.

Guys who ran Mobil 1 and Castrol on the BMW forums would get this cream coloured gunk building up in the insides of their oil caps. Myself included. Went away upon switching to a different brand

It would be interesting to know what oil analysis reports would show, when paired with such "gunk" showing on the oil caps. Perhaps those oils simply had more-capable cleansers than the average oils in the history of those particular vehicles. Hard to know.

Can't say that I've ever experienced any gunk build-up in my own vehicles, several of them, with a lifetime diet of either Mobil 1 full synth or Castrol full synth (GTX, IIRC).
 
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