Long story short my 277,000+ mile Civic leaks a fair amount of oil via the rear main seal....used Auto Rx a while back [rear main still leaked] ........ I'm now running Delo 400 15w-40 HDEO now with "Bars Rear main seal" which has actually slowed down the leak some.
Car isn't driven much in the summer [no A/C] but the oil needs to be changed so I was going to give Auto-Rx another chance [rear main seal] but I wanted to use Castrol Syntec 5w-50 since winter isn't that far off. Car leaks very little oil when 20w-50 oil is run in it. So my logic is kill 3 birds with one stone: 50wt oil less seal leaking, 5w primary number cold starting but..... I just need to know if this oil is Group 3 or not.
Thanks,
Glen
Car isn't driven much in the summer [no A/C] but the oil needs to be changed so I was going to give Auto-Rx another chance [rear main seal] but I wanted to use Castrol Syntec 5w-50 since winter isn't that far off. Car leaks very little oil when 20w-50 oil is run in it. So my logic is kill 3 birds with one stone: 50wt oil less seal leaking, 5w primary number cold starting but..... I just need to know if this oil is Group 3 or not.
Thanks,
Glen