I am assuming that your numbers are in psi, am I correct?
If so, 25 psi at idle is othing to be concerned about. The drop in pressure has to do with the use of a lower viscosity oil.
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Ali Al-Chalabi
2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record
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