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

[1stToyota]

Originally Posted by gid

here's a concern , on T.S.B. ( http://www.automotiveforums.com/vbul...d.php?t=604802 ) for WARRANTY it states " NOT APPLICABLE TO WARRANTY " , does this mean TOYOTA is not responsible for the use of these oils in their engines ? Makes me wonder if they've done enough research and we are the lab rats . Many TOYOTA owners are having an issue with TOYOTA for the TACOMA frame that's rotting out and breaking . Especially for those who own the 2001 and 2002s , so my trust in TOYOTA is not 100% . Last , since the switch from 5w-30 > 5w-20 there's more engine noise , it's most noticeable at high speeds on the interstate . Seems like it could be the timing chain , . I'm considering to dump this fill of 5w-20 and go back to 5w-30 . The oil is PENNZOIL Platinum which is highly regarded at www.bobistheoilguy.com for U.O.A.s . If curious , http://www.bobistheoilguy.com/forums...Board=3&page=1 , there are other good U.O.A.s for the PLATINUM 5w-20 on other pages , so I doubt it's the oil .

They say to use 5w-20 that will void the warranty?
And also in the very same *updated* Toyota TSB they cover themselves again when saying it's okay to use 5w-20, but see the attached *note*...

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."