Quote:
Originally Posted by SentraSE-R
I don't think you should be running such thin oil in such an old engine. Toyota's TSB EG018-06 recommends 5W-20W in certain '06 engines, and 0W-20W only in the '06 and newer 2AZ-FE engine used in the Camry, Solara, Highlander, and RAV-4. It specifically says not to run those thinner oils in older engines. |
That TSB is worthless, Toyota denies the info in it, they tell you to go off of your manual. I contacted them on it. For example, the 1NZ-FE engine that's in my Yaris is on that list, but 5 years later, the manual still states 5w-30. Even the 2012-14 Yaris (1NZ-FE) uses 5w-30, yet the Prius C with the 1NZ-FXE, which is nearly identical to the 1NZ-FE (different cam profile and different pistons), uses 0w-20.
There is no difference between 0w-20 and 5w-20 at operating temp, the 0w is thinner than the 5w cold, but all oil is substantially thicker cold than at temp.