GF-4 10w30 can be blended straight Grp II.
According to ChevronTexaco 5w30 and 5w-20 can be blended with 5R + 220R …
5R= Grp II+
220R = Grp II.
Or, obviously some Grp II with a Grp III/PAO also.
According to ChevronTexaco 5w30 and 5w-20 can be blended with 5R + 220R …
5R= Grp II+
220R = Grp II.
Or, obviously some Grp II with a Grp III/PAO also.