Originally Posted By: Camprunner
Is there any evidence that motors with sophisticated timing chain systems (long winding timing chains) cause motor oil to brake down faster during use?
1.6L GDI and turbocharged engine in Nissan Juke...breaks oil down like nobodies business. Every UOA on 2 Jukes now (13 and 15) is out of the grade, if not the grade below that.
QSUD 5w/30 2000 miles, 8.61 cSt @100C should be 8.8-11.1
Pennoil Ultra (the good stuff) 10w/30 3144 miles, all road trip, 9.10 cSt @100C, should be 9.7-11.9
Nissan FF 1426 miles, all local trips, 5.91 cSt @100C, unknown what it should be, but not this
Mobil 7500, 10w/30 2288 miles, road trip, 7.89 cSt @100C, should be 9.9-11.9