Higher Oil pressure means Less Worn Engine?

[JCCADILLACMOBILE]

Hi All. i got the Alternator Fixed. yes, FIXED. Charging at 14.2 Volts, checking it out once more before Work!!!

Now that the car can MAINTAIN its Running, im wondering if "Higher il pressures" (60Psi and such while driving, engine 2000-3000 RPM fully warmed) mean that the Viscosity im using (in this case, 10W-40) mean i DONT need to think about a "Higher Viscosity" liek the 20W-50 Jaguar SAYS to use?

I knwo most people dont use 2-W-50 and some also dont use 10W-40 but a 40 with a lighter W number.. but surely the application remains the same: if youre seeing Nice HIGH Oil pressures (that arent TOO High,) .. DONT go up a Grade, yes?

Im off to work.. Thanks all!

 

[oilboy123]

I don't think your question is very concise, kind of fuzzy? I think you are saying your Jag specs 20w-50 oil and you are running 10w-40 now with good pressure.
If I was running a good syn oil vs a dino I would have no problem dropping a grade.

 

[Hokiefyd]

I think you're asking this:

"Jaguar says to use 20W-50 oil, but I'm using 10W-40 and seeing plenty of oil pressure. Am I okay with this?"

If that's what you're asking, I think you absolutely are okay. The best oil for your car MIGHT be something like Rotella 5W-40 synthetic, or any 5W-40 synthetic oil. You could also easily get away with 15w40 conventional HDEO.

 

[mechtech2]

It's all about oil temperature.
It changes everything.

 

[Corvette Owner]

It also matters WHERE your oil pressure sensor is ! BEFORE or AFTER the oil filter?