The Rig

iTrader: (13)

following on from a THREAD ABOUT OIL PRESSURE GAUGES, alot of people were quoting 6 - 7.5 bar at idle cold, 3 bar at idle warm.

now, my pressure is at 6 cold idle and 2 warm idle, but im using a 10w 40 oil,whereas alot o fpeople are running 15w 60 oil.

would this result in the low oil pressure im getting,well,not low but lower than the others are getting.


cheers.........

harvey

iTrader: (48)

The thinner the oil the lower the pressure so 10-40 will have lower readings than 15-60 in the same engine. With witer coming, oil pressures will be higher than mid summer. Do not go for a very thick oil for winter use on a car used every day.

JohnD

iTrader: (5)

Fear not.

The pressures you quote for 10/40 are what I see on my 03 STi
10/60 or even worse, 15/60 oils are, in my opinion, far too heavy for ordinary road use. I remember using Castrol RS 10/60 in my 99my and saw around 3bar at idle and over 6bar at anything over 2k rpm
15/60 - would that be Millers? I use Millers CFS 10/40 or 5/40 in winter.
JohnD

MaDaSS

03 WRX, 6 bar at revs when warm or cold, 3 bar or just above at warm idle, 6 bar to 6.5 bar at cold idle.
Thats using Pro R 15w 50 as serviced by RCMS.
Just FYI, i have had my car serviced by 3 places, all specialists, and they all used a 15w 50 oil, so there must be something in it?
I aint sure what like, but i was expecting the usual Pro S 5w 40 or someat TBH.
I will have to phone RCMS and quiz Olly about it, lol.