Originally Posted by ChrisD46
*PP has A5/B5 sheer resistant rating where as QSUD does not . I believe only only PP and M1 5W30 are shown meeting A5/B5 in 5W30 synthetic from WM . I drive a Hyundai GDI engine , so I change my oil around a severe duty schedule 3,750 miles) thus I would not hesitate to use QSUD 5W30m in my Hyundai GDI engine .
QSUD used to have A1/B1 if not A5/B5. Generally speaking, I'd have similar confidence in it to other A5/B5 options, unless I were really concerned about ensuring a formal claim of A5/B5 existed for a specific oil.
*PP has A5/B5 sheer resistant rating where as QSUD does not . I believe only only PP and M1 5W30 are shown meeting A5/B5 in 5W30 synthetic from WM . I drive a Hyundai GDI engine , so I change my oil around a severe duty schedule 3,750 miles) thus I would not hesitate to use QSUD 5W30m in my Hyundai GDI engine .
QSUD used to have A1/B1 if not A5/B5. Generally speaking, I'd have similar confidence in it to other A5/B5 options, unless I were really concerned about ensuring a formal claim of A5/B5 existed for a specific oil.