5w-20 motor oil : who's using it ? ...

[RagnaCaT]

Originally Posted by 1stToyota

I don't know what free oil change claims has to do with this part of that Toyota TSB...

Quote: "The recommended viscosity grade for this oil differs according to vehicle model. Use the recommended grade specified on the oil filler cap or in the Repair Manual or Owner’s Manual for each vehicle."

Looks like it's pretty plain to me: "Use the recommended grade specified on the oil filler cap or in the Repair Manual or Owner’s Manual for each vehicle."

Exactly but in the TSB 5w20 is specified for the 1NZ so what there doing is "If you don't understand this just do what the cap says" That way Toyota never misguided you and washes their hands. So if you every have an issue remember TSB number or the Cap and your fine when your up against Toyota cuase they specified there options so both are OK

[dallas]

Wear metals in testing do go up for me with 5w20, best results with 0w30.

[SilverGlow]

Originally Posted by dallas

Wear metals in testing do go up for me with 5w20, best results with 0w30.

Not true in every case, every climite, every season.

The wear numbers I get using 0w-20 versus 0w-30 are the same.

[TheSilkySmooth]

Originally Posted by SilverGlow

Not true in every case, every climite, every season.

The wear numbers I get using 0w-20 versus 0w-30 are the same.

Sorry SGlow, you are loosing your argument. If You like oil so much maybe you can be YarisWorld mascot? This might be Good:

[1stToyota]

Originally Posted by SilverGlow

Not true in every case, every climite, every season.

The wear numbers I get using 0w-20 versus 0w-30 are the same.

Don't dispute his UOA, please.

[dallas]

Show me the Money, I mean results,LOL.

QUOTE=SilverGlow;167511]Not true in every case, every climite, every season.

The wear numbers I get using 0w-20 versus 0w-30 are the same.[/QUOTE]

[1stToyota]

Originally Posted by RagnaCaT

Exactly but in the TSB 5w20 is specified for the 1NZ so what there doing is "If you don't understand this just do what the cap says" That way Toyota never misguided you and washes their hands. So if you every have an issue remember TSB number or the Cap and your fine when your up against Toyota cuase they specified there options so both are OK

Both are okay, if you don't mind the extra noise with 5w-20. To me extra noise = extra wear.

[SilverGlow]

Originally Posted by 1stToyota

Both are okay, if you don't mind the extra noise with 5w-20. To me extra noise = extra wear.

Your opinions lack scientific bases, and you use "noise" to determine wear?

People that go to college and learn science know that actually using highly controlled and scientific tests, like a used oil analysis to ascertain wear is far more conclusive.

And if you use noise to decide, did you run your car in a sound studio, and monitor the noises with fined tuned computer monitors? Did you do before and after tests?

Did you graduate from highschool?

[1stToyota]

Originally Posted by SilverGlow

Your opinions lack scientific bases, and you use "noise" to determine wear?

People that go to college and learn science know that actually using highly controlled and scientific tests, like a used oil analysis to ascertain wear is far more conclusive.

And if you use noise to decide, did you run your car in a sound studio, and monitor the noises with fined tuned computer monitors? Did you do before and after tests?

Did you graduate from highschool?

Genius, you're the guy that's using 0w-20 in southern Ca, eventho' the Toyota TSB says do NOT use 0w-20 in our 1.5Ls, under ANY condition. See how well your warranty works for you after you inform the service department that you refused to follow the Toyota TSB guidelines, not to mention your owner's manual, provided that you have any future issues with your motor.