I have beeen having very heretical thoughts...
Is it possible that viscosity could be the least important factor in an oils design instead of the most?
Is it possible that a quality 0W20 Synthetic could outperform a generic 20W50 Dino in most vehicles?
And vice versa a quality 15W50 synthetic would outperform a generic 5W30 Dino?
I realize that each engine design will have a ideal viscosity for any given oil temp but no oil can be ideal for all temps.
I really am starting to wonder given swings from 5W20 to 20W50 sometimes for the same temperature depending on the local political climate and marketing realities.
Gene
Is it possible that viscosity could be the least important factor in an oils design instead of the most?
Is it possible that a quality 0W20 Synthetic could outperform a generic 20W50 Dino in most vehicles?
And vice versa a quality 15W50 synthetic would outperform a generic 5W30 Dino?
I realize that each engine design will have a ideal viscosity for any given oil temp but no oil can be ideal for all temps.
I really am starting to wonder given swings from 5W20 to 20W50 sometimes for the same temperature depending on the local political climate and marketing realities.
Gene