I have a service appointment scheduled next week for my 2004 Toyota Sequoia so I tried to pick up my normal 7 quarts of Mobil 1 5w-30 Extended Performance and Walmart didn't have any individual quarts so I just brought home the 5 quart jug. I also run 0w-20 in my 2008 Civic and I always have a little extra returned by my mechanic at each oil change that has been collecting in 5 quart jug. I currently have about 2-1/2 quarts that is an unknown mix of 0w-20 and 5w-30. I'm thinking that the economical and smart thing to do is just have him use this excess for the addition 1-2 quarts rather than purchasing two more quarts.
From what I've read on the forum I don't see any reason why it would make much if any difference. The normal OCI is about 10,000 miles and the 5w-30 has been tested to verify that it'll easily go that distance in my application.
Thoughts? At this point I'm planning to just use the oil I have knowing that the final result will be a slightly thinner mix. I know the 0w vs. 5w will only be better and I doubt the 30w will be thinned enough to make a real difference.
From what I've read on the forum I don't see any reason why it would make much if any difference. The normal OCI is about 10,000 miles and the 5w-30 has been tested to verify that it'll easily go that distance in my application.
Thoughts? At this point I'm planning to just use the oil I have knowing that the final result will be a slightly thinner mix. I know the 0w vs. 5w will only be better and I doubt the 30w will be thinned enough to make a real difference.