Paul T. Posted June 1, 2006 Share Posted June 1, 2006 On cold start on idle I have 4bar...great When the throttle is blipped ( When Oil is warm the pressure steadies 3-4bar on normal load, but drops to 1bar or a tad less on idle. Even when warm the OP is very responsive to revs ie jumps to 4 bar when blipped. I have checked the earthing and just changed the sender as the usual suspect, but similar readings. Q.The engine has just had a rebuild and I done an initial fill with 5w/30 Semi to help bed the big-end and main bearings, would this be the cause for the high variation in OP readings. Q.Should I switch back to fully synthetic...will it make the difference 🤔 Q.Should I be that alarmed with the high readings 🤔 Edited by - Paul T. on 1 Jun 2006 17:17:37 Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted June 1, 2006 Support Team Share Posted June 1, 2006 SAE30 sounds a bit thin for a K series engine. I ran mine in on 10W-40 mineral oil (might even have been 10W-50) which was recommended by Dave Andrews and then changed to Mobil 1 0W-40 after 500 miles. Caterham recommend their 5W-50 motorsport oil. With the 0W-40, my oil pressure can drop quite low at hot idle - with your 10W30 it could get even lower. Yellow SL #32 Link to comment Share on other sites More sharing options...
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