Has anyone run a test using 5W30 in place of water? (0W16)
Kinematic Viscosity 5W30 is 10.3 @ 100 degrees C.
Kinematic Viscosity 0W16 is 7.6 @ 100 degrees C.
So about 30% difference.
The new water oils is a conspiracy for two reasons:
Better fuel mileage required to meet the EPA standard.
Wears out your engine much faster, thus you buy a new car.
Has anyone performed an oil analysis to compare how running 5W30 turns out?
And no it will not destroy your engine. Doing 10K Mile oil changes will destroy your engine.
If there is no one brave enough to try this, my next car will be a brand new Camry (in a few years). I will take the risk for this community and run 5W30 as soon as I get home from the dealer. I will document all my oil changes and see how long the engine lasts. By the way I change my oil every 4000 Miles.
As for you keyboard warrior engineers and mechanics that seem to know everything. The smaller oil rings in modern car pistons will still pass 5W30 with ease. Oil pressure is at around 50 PSI it will go through anything.
I took a 2010 Highlander to 250k miles with 10k oil changes and never changed the transmission fluid. It ran perfectly, shifted smooth as butter still. That being said it’s not going to hurt if you change it more often and do a normal change (not flush) of the transmission fluid after 80k miles. I don’t buy the “it’s all a conspiracy” stuff though. I will say there are far too many oil change shops that will lie about the oil they put in. I have caught several putting in conventional oil when I asked for full synthetic. Also if you are a low mileage driver then consider changing it more often at least every 6 months IMHO. For us we do 20k miles a year so that isn’t an issue for us.