At the last oil change a couple of weeks ago, I filled with Toyota Genuine Motor Oil 0W-20 SN/GF-5 Synthetic. It's made by ExxonMobil in US. I was able to get it for $5.50 a quart after hard negotiation -- about the lowest you can get it for.
I am really impressed with this oil. It's giving the least engine friction I've ever experienced. As a result, gears shift smoothly at low engine output. I obtained 32 MPG in 2/3-freeway and 1/3-city driving in the last 11 gallons, highest I got with any oil. The engine also runs very smoothly and with minimal valve tick.
The oil has a nauseatingly strong odor I've never experienced with any other oil. It's probably because it contains a lot of Group IV/V truly synthetic base oil or has an additive giving the odor. In contrast, M1 0W-20 SM (not SN) that I have an open bottle of has a similar but much, much weaker odor, indicating that it also contains the same stuff (Group IV/V ?) but in much lesser amounts.
It's also almost certain that it contains Infineum trinuclear moly, which is known to give the least friction and most engine protection among all moly kinds.
This oil is also known to have a viscosity index of about 216, higher than almost every other oil (except Sustina).
I am virtually convinced that it's the best 0W-20 out there. I think it has better base oil than Mobil 1. Sustina is a Group III+ oil; so, Toyota has better base oil than Sustina as well. I don't think any other oil can beat it in fuel economy.
I'm really pleased with oil so far. It's a huge upgrade to Pennzoil Yellow Bottle (PYB) SN 5W-20, which I got poor frictional performance from. I will do a UOA in 3,000 miles.
I am posting some pictures of the bottle here so that you can take a close look.
I am really impressed with this oil. It's giving the least engine friction I've ever experienced. As a result, gears shift smoothly at low engine output. I obtained 32 MPG in 2/3-freeway and 1/3-city driving in the last 11 gallons, highest I got with any oil. The engine also runs very smoothly and with minimal valve tick.
The oil has a nauseatingly strong odor I've never experienced with any other oil. It's probably because it contains a lot of Group IV/V truly synthetic base oil or has an additive giving the odor. In contrast, M1 0W-20 SM (not SN) that I have an open bottle of has a similar but much, much weaker odor, indicating that it also contains the same stuff (Group IV/V ?) but in much lesser amounts.
It's also almost certain that it contains Infineum trinuclear moly, which is known to give the least friction and most engine protection among all moly kinds.
This oil is also known to have a viscosity index of about 216, higher than almost every other oil (except Sustina).
I am virtually convinced that it's the best 0W-20 out there. I think it has better base oil than Mobil 1. Sustina is a Group III+ oil; so, Toyota has better base oil than Sustina as well. I don't think any other oil can beat it in fuel economy.
I'm really pleased with oil so far. It's a huge upgrade to Pennzoil Yellow Bottle (PYB) SN 5W-20, which I got poor frictional performance from. I will do a UOA in 3,000 miles.
I am posting some pictures of the bottle here so that you can take a close look.