I recently switched to Magnatec 5W30 and was comparing the information on the PDS's for Magnatec 5W20 and 5W30 today and some others just out of curiosity.
Some of the numbers between 5W20 and 5W30 were not really far off from each other and made me wonder. I have seen some say in some other threads that "such and such oil is heavy for a 5W20/5W30/0W20 etc."
So, what exactly or which spec exactly determines or makes one say a certain 5W20/30 is "heavy"?
Some of the numbers between 5W20 and 5W30 were not really far off from each other and made me wonder. I have seen some say in some other threads that "such and such oil is heavy for a 5W20/5W30/0W20 etc."
So, what exactly or which spec exactly determines or makes one say a certain 5W20/30 is "heavy"?