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Hope this thread doesn't get into a synthetic vs a dino oil thread.
I have a simple question about the SAE ratings for synthetic vs dino oil . I observe that generally the synthetic oils have lower SAE ratings (e.g. 5W40) instead of the dino (e.g. 20w50).
I have been using the BMW OEM motor oil 20w50 till now. I have 30K on my LT and I am considering switching from dino to synthetic. I have existing oil for my truck that's rated at 5w40. Is it ok to switch to a synthetic that has slightly lower ratings than the dino?
I have a simple question about the SAE ratings for synthetic vs dino oil . I observe that generally the synthetic oils have lower SAE ratings (e.g. 5W40) instead of the dino (e.g. 20w50).
I have been using the BMW OEM motor oil 20w50 till now. I have 30K on my LT and I am considering switching from dino to synthetic. I have existing oil for my truck that's rated at 5w40. Is it ok to switch to a synthetic that has slightly lower ratings than the dino?