The difference in dP vs flow is minuscule between filters at idle RPM. And the PD pump isn't anywhere near pressure relief at idle. If the oil temperature isn't exactly the same, or he changed the oil too then that can make a noticeable difference in oil pressure.
Most likely a combination of factors. How many miles on the XG16 Ultra? Could've been more likely loaded in the pleats, ergo more dP across the media.
I ran 5 different brand filters on my Z06 that an accurate oil pressure and oil temperature digital gauges. Always ran Mobil 1 5W-30. When the oil temperature and the engine RPM was at the points, the oil pressure was always the same regardless of what oil filter was on the engine.
Don’t know if oil temp was same. Did not change oil. Oil psi gauge is factory installed by Dodge. .
The OG ULTRA XG 16 had 3k on it.
Is it digital, or a needle? What's the resolution of the gauge?
I have yet to see any actual proof that Toyota filters sacrifice efficiency in any recent testing.
If you believe BR's testing on YT, the OEM Toyota didn't come in very well compared to other OEM filters.
I've never seen any oil pressure difference between filters. Maybe those that actually do might have a really worn out oil pump. A few PSI difference in dP across different oil filters isn't going to matter to a healthy PD pump.
It’s a needle. Don’t know what ya mean by resolution
What was your in and on previous to xg16 ultra
Does it have hash marks on the gauge. Like 0, 10, 20, 30, etc, or like 0, 5, 10, 15, 20 etc. Or just Low to High oil pressure?
Low to high psi
Exactly what i was going to say. Toyota oil filters aren't really that great, filtration wise.. so they might be less restrictive.. that being said, can the filter be influential enough to be a factor..?
I assure you we see engines with hundreds of thousands of miles daily at the dealership where i work. Some of us, myself included, just want the best! Now, what is the best, that can be left open to interpretation..
