The last 2 road trips I have taken my low oil pressure warning light has come on when going up extended 5% grade twisty mountain passes and only during those driving conditions. I stop and check the oil and I have only been 1/4 to 1/2 low on the dip stick. This is a 96 passat wagon running synthetic Mobile 1 5/40 diesel oil @ 10,000 change intervals. Any insight on where to begin tracking this problem down would be greatly appreciated.
Cheers Tim
Cheers Tim