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Still_Searchin_'s avatar
Still_Searchin_
Explorer
Aug 04, 2017

Heavier engine oil for pulling with Toyota Highlander?

We have a 2012 V6 Toyota Highlander with the tow pkg, rated to pull 5,000#. We pull a 3,200# Casita travel trailer (loaded). Manual calls for 0-20 full synthetic engine oil, but mentions heavier oi...
Tow Vehicles
rexlion's avatar
rexlion
Explorer
Aug 04, 2017
I towed 140,000 miles with my 2008 HL (185k total driven), Both business and vacations. I used 5w30. Pretty sure the manual mentioned that weight for severe use. Engine was doing great yet when I sold it. Mobil 1 in summer, but the rest of the year I used dino oil. 0w30 would be great if you have cold winters, but here in OK it is mild.

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