"High Speed" Driving & Engine/Oil

[HowAboutThis]

Quote
Yes I know. We had a guy here once with a whole thread about running his engine with canola oil. He tried to make sense of that.


Never canola. Only vegetable or peanut. The smell is much better...

 

[OilUzer]

Originally Posted by HowAboutThis
Curious if there is opinion/evidence on how well oil holds up on a long journey through the Rockies and across the flyover states. For instance, a Toyota running synthetic 0w20 during the summer, climbing the mountains and then once on the flat setting the cruise at 80+mph. Weather might be 75 or might be 105.

Is this "extreme" driving conditions? Or is the highway cruising easy on the engine and oil?

I should add, seems like the flyover states always have a 20+mph headwind adding engine load...


I would ditch the x20 during summer & your driving conditions. I'm sure if you look, Toyota OM allows/recommends heavier oil. Something like "more suitable ..."

 

[edyvw]

Originally Posted by OilUzer
Originally Posted by HowAboutThis
Curious if there is opinion/evidence on how well oil holds up on a long journey through the Rockies and across the flyover states. For instance, a Toyota running synthetic 0w20 during the summer, climbing the mountains and then once on the flat setting the cruise at 80+mph. Weather might be 75 or might be 105.

Is this "extreme" driving conditions? Or is the highway cruising easy on the engine and oil?

I should add, seems like the flyover states always have a 20+mph headwind adding engine load...


I would ditch the x20 during summer & your driving conditions. I'm sure if you look, Toyota OM allows/recommends heavier oil. Something like "more suitable ..."

2GR-FE engine I have in SIenna in Australia is allowed to use 20W50.

 

[Simon_G]

A long journey by itself is not stressful if speeds are steady.

High temperatures ARE stressful.

Climbing mountains IS stressful.

Pulling a load like a trailer IS stressful.

I wouldn't be concerned about how the oil holds up as much as I would be concerned about breaking the oil film and its effect on bearings.

I put a 0W-20 synthetic in my wife's car but run the same oil in 5w30 in my own because of the mountain climbing, high engine speeds, and high temperatures that I do.