new (not really) oil from mobil 1, 0w-30 and 0w-20 - Toyota Yaris Forums

R2D2 · 08-21-2009, 08:00 PM

Well they haven't taken the GF-3 off the cap either-and GF-3 has been obsolete for many years

My point about the sound is that thicker oils tend to dampen noise better than lighter oils but it is not necessarily an indicator of increased wear. Oils of the same viscosity can also exhibit differences in sound dampening depending on how they are formulated.

At any rate I think the intention of the TSB is quite clear and the NZ series is plainly listed in the 5W-20 column. Warranty wise GF-4 in either 5W-20 or 5W-30 would be fine. I'll try to get Toyota's official take on this next week to clear up the confusion.

R2

08-21-2009, 08:00 PM	#16
R2D2 Crazy Oil Sniffer Drives: MM 09 Yaris 5 Dr LB "Click" Join Date: May 2009 Location: ME Posts: 498	Well they haven't taken the GF-3 off the cap either-and GF-3 has been obsolete for many years My point about the sound is that thicker oils tend to dampen noise better than lighter oils but it is not necessarily an indicator of increased wear. Oils of the same viscosity can also exhibit differences in sound dampening depending on how they are formulated. At any rate I think the intention of the TSB is quite clear and the NZ series is plainly listed in the 5W-20 column. Warranty wise GF-4 in either 5W-20 or 5W-30 would be fine. I'll try to get Toyota's official take on this next week to clear up the confusion. R2 __________________ "The howl was the sound of God’s casting pot, the morphing of my cells into shape, the forming of oceans out of molten premordial plasma. And I could feel it. I could cry for it. I could cry with it." -The Fitful One