Originally Posted by dave1251
So there is nothing to verify your opinion. Ford made the recommendation after testing which you and I can not replicate do to we just don't have the time or resources with out of the bottle Motorcraft 5W30. If this was not sufficient no doubt another grade would be used. Ford makes other grade recommendations either higher or lower.
My 2005 Ranger states: "5w-20 has been tested to provide adequate protection for your engine". Adequate is not good enough for me...
So there is nothing to verify your opinion. Ford made the recommendation after testing which you and I can not replicate do to we just don't have the time or resources with out of the bottle Motorcraft 5W30. If this was not sufficient no doubt another grade would be used. Ford makes other grade recommendations either higher or lower.
My 2005 Ranger states: "5w-20 has been tested to provide adequate protection for your engine". Adequate is not good enough for me...