Originally Posted By: beast3300
Looks like a great oil for a 0w20 Honda brand or Toyota brand replacement maybe.
RL 5W-20 is a rather old formulation albeit a very unique one.
It's HTHS vis of 3.3cP and 145 VI leaves it with very few applications.
RL's much lighter 0W-20 is targeted as a light hybrid oil but with it's HTHS vis of 2.7cP and 166 VI is still considerably heavier than the ultra low vis' high VI oils such as the Toyota and Honda Brand 0W-20's with their 2.6cP HTHS vis' and 200 plus VI's.