Hi folks
Completed my first oil change as part of IMS Guardian install (some pics on my Rennlist thread). Was due in July for 12 month service so its been 10 months or 6000 kms since last change. Engine run exclusively on Mobil 1 from new and has done 109,000kms. Current grade is 5w 50. UOA is:
Cu 23ppm
Zn 817
P 709
Fe 8
Al 2
Cr 1
PQ 0
Main concern is Cu but Zn and P are lower than nominal (1100/1000). Have refilled with Fuchs Titan Supersyn 5w 40 and will check again in 6 months. Interested in your thoughts/ comparisons.
