Re: [alfa] Oil Changed... now at high RPM pressure drops

[Mark Denovich <mark@xxxxxxxxxxxx>]

I saw a dramatic change in oil pressure guage behavior after switching 
from Mobil 1 -> regular dyno-oil.    I was using 15w40 Mobil 1 in my 
Milano Verde, but I got tired of $30+ of oil for each oil change, 
especially since I change it frequently.   I switched to Valvoline VR1 
after seeing some recommendations from the list, this time in 20w50.

Once the Mobil 1 was warmed up, oil pressure at idle was very low 
(somewhat distressingly low) and not much higher off-idle.  With the 
Valvoline I'm seeing way more oil pressure... at least 30-40% higher 
than I did with Mobil 1 across the board (almost 4 bar above 3k rpm). 
I'm almost worried that I have too much oil pressure.    Before anyone 
suggests it, I'm using the brand/model oil filter I've used for the last 
5 or so oil changes, and my oil pressure sender is less than 2 years old.

--Mark
http://mark.denovich.org
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