Shell Rotella 5w-40 for 2007 Prius?

[SR5]

Originally Posted By: Garak
One has to aim it at someone with a high enough pay grade to know what he's talking about, but low enough not to delegate it to someone who doesn't know, or ignore it altogether.


Yep, that's the trick, finding the right person at the right level. Enough authority to answer, interest enough to care, but not loaded up with too many other far more important jobs to just let this question slide.

 

[friendly_jacek]

Originally Posted By: Garak
Personally, I'd be surprised if the vehicle wasn't backspeced, but that doesn't mean a whole lot.


i would be surprised if it was. it takes a whole lot more than UOA to revise car maintenance requirements. not cost effective for toyota on cars they don't make anymore.

 

[Garak]

I would agree on the UOA part, obviously, but the engineers should have some idea whether or not a 5w-20 or 0w-20 would have sufficient HTHS. If we all bug them enough, we might find out the truth on this chart.

 

[wgtoys]

Originally Posted By: greguzzi
Thoughts, anyone, on this combo of car and oil? I have it, I use it on all my other vehicles, and am hoping it will work OK for this vehicle in the Seattle climate.

Thanks!


That strikes me as a really bad idea. If you are trying to save pennies, put any good 5W-30 in there. That Prius gas motor goes through massive numbers of start-stop cycles. 5W-40 is a poor choice.