Spreadsheet of almost 60 mod motor UOAs!

[MGBV8]

Stinky

I would be interested in your spreadsheet.

Have you drawn any conclusions from this information?

 

[darkdan]

I'm trying to not draw any conclusions. =) I'm letting the numbers and others draw their own.

This way the Xw30 fans can be like, "I told ya so," and the 5w20 fans can be like, "it's not scientific!"

The link for the spread sheet is on my first post. Please right click and save as.

 

[427Z06]

darkdan thanks for the effort. XS650, thanks for the slicing and dicing.

Let me point out the obvious. Any conclusions you draw would of course be valid only for the Ford modulars. But, interesting, none the less.

 

[darkdan]

Since I have tomorrow off I might do a Mazda 3/6 spreadsheet this time with copper!

I'd do honda, but they're honda's....so I don't care.

 

[darkdan]

Sadly, there aren't enough mazda's UOA to have any fun with the numbers.

Most of them I had to eliminate because they were factory fills or break in oils.

Plus, there are several different engines.

It's sad to see the lack of 5w20 supporters on this thread. I really should have titled it 5w20 vs 5w30 spreadsheet comparison.

 

[427Z06]

quote:

---

Originally posted by darkdan:
I'd do honda, but they're honda's....so I don't care.

---

Cool. How about LS1/LS6 engine family? Include all wear metals.

 

[darkdan]

Okay, I started the LS1 spreadsheet today.

Is there any rhyme or reason to the way these motors wear?

 

[dustyjoe1]

my interpretation of the data is that its mostly inconclusive as to 30 weights being better than 20 since there were a lot of real good 20's also on a ppm per 1000 miles basis (inverse of weighted figure) HOWEVER' this is very good data because it shows that 5w30 at the very least doesn't do any worse than 5w20. This in itself is great information for me because it verifies that my decision to run the more affordable 5w30 over 0w20 is not going to cause any extra wear on my engine and possibly actually be a better choice. As someone pointed out to me a while back, ht/hs on the 20's don't leave much room for error, while there is more slack built into the 30's. Thank you for your post.

r.

 

[hannaco]

What if . . . we could put all of Stinky Peterson's data into one Microsoft Access data base? Then you could do queries against the data base. From that make graphs for easy comparison.