2007 Zx-10

roy365

The comments on the analysis are very interesting. Nice to see it broke down on each engine.

So now i know.....no MORE than 5K miles on my oil!!!!

Thanks for sharing.

2007 Zx-10

You can't compare break-in oil change with oil drain intervals during subsquent operation, especially after 10-15k miles or so, a 5k drain interval is fine with a quality oil like Amsoil, in fact he probably could have left the factory fill in a bit longer. I changed mine at 4.5k, but did not get it analyzed.

slalom44

Thanks for posting, Coquinn. Those wear metals are very low for a break-in UOA. You can't tell how much life is left in the oil without getting a TBN. You likely had plenty of life remaining in the oil.

coquinn

Thanks for the input. I really wanted to share this because I've seen some people criticize the factory fill and say it is nothing special. However, I feel this report really does show the factory fill contains a good amount of Molybdenum.

I wasn't really worried about the life of the oil so much, which is why I didn't get the TBN analysis. I did get this done on my daily driver, and it's been helpful in establishing how long of a duration I can go between oil changes.

I was curious about the Boron quantity. I'm not really sure what it is in relation to the engine functions, nor where there any comments on the analysis.

When I did the oil change, I did switch to Amsoil 10W-30, and also used the Mugen oil treatment in case I was premature in switching to a full synthetic. I haven't had to add any oil at this point though, so we'll see how that goes.

Again, thank you for all the comments ...they are well received.

coquinn

I've seen a lot of people commenting on the amount of metal in the differential fluid when they change the oil at ten to fifteen thousand miles. I figure since I've been putting the LSD through it's paces, and I would like to keep things at optimal performance, why not go ahead and change it at five thousand. I assume the oil will be black and full of metal shavings at this point anyway.

Again, I may be premature in these changes, but I thought it would establish a good baseline for the future. You can never have enough data, or opinions.

INDYMAC

When you see your OEM diff oil, you'll wish you had changed it even earlier than 5K.

The high moly content is mostly from assembly lube, not oil additive. The Boron content is from the borate additives in the oil itself. It's not from an engine part. It is used to enhance the EP and AW properties of the oil by most oil companies.

SpitfireS

coquinn Posted on Jun 26 2009, 12:28 AM


What I meant was: I wonder what you're going to use for diff oil in a weekend warrior diff?



































P.S. I would at the very least stick to the diff oil recommendations in the manual.
But that's just me.
LE-1605
Amsoil SG 75W-110
Amsoil SG 75W-140

tekstar

I currently use Amsoil SG 75W-90, what are the benefits of using the 75W-110 or 75W-140?

INDYMAC

Better high temperature protection.