He's running #6's with 525's. A mongoloid couldn't tear that package up regardless of what oil was being used.
Bobby, have you had many drive failures? You've got some power in your ride, but I don't recall hearing any carnage stories.
If you want the NEO oil, let me know. I'm a dealer for the Bravo Shop & I'd love to help you out.
Hell, that offer goes to anyone who is willing to run it.

Till I learned how to throttle the boat I smashed a few ,four uppers one lower , One upper was with stock power ,the lower hit ground .The six blade Herrings didnt help. Dont get me wrong, Im real careful with the sticks , looking back failures my fault! I change the fliud alot every five weekends or after a high speed weekend .mainly looking for signs of trouble,lubes still good .you do have a good piont about the 525,s no.6,s

Would it be worth it for me? I was just going to replace with Merc HiPer. 525's/TRS

Just changed my oil, ran it all season last year on same oil, sat all winter, Amsoil SG. No shavings at all on the magnets, oil a touch dark, pretty impressed.

Fixed it for ya....

No you're not & yes you should run it.

I have been breaking complete teeth off of the upper gears. I don't think any type of gear oil will stop that. I am back on my quest to engineer better gear sets that will last longer and not snap teeth clean off.

After I get my gears made, then I would be interested in a better gear oil.

SMITTY,,,, if you are breaking XR's alot,,, you need to cut out the caged roller bearing that comes with the gear set and replace it with a larger roller bearing(torington) use the same snap ring to hold the bearing in,,,,this will take the rock out of the upper gear set

Just my 2 cents- I'm your typical bravo guy with way more power than the law allows, in a single engine vee. Until desert storm weekend, I hadn't managed to get more than 2 hours out of any drive I've used on this boat. I tried a new bmax, and the neo oil... John at the bravo shop was adamant that I use this after a 2 hour break in with regular lube. I managed to run the poker run, make 3 solid pulls when the water cleared up a bit, AND drive back to tue marina under it's own power. This has NEVER happened before! I drained the oil and pulled the propshaft to check the lower gears, and all looks perfect after 7 hours of violent punishment in a heavy single engine boat with a ton of power and even more prop. I can't say it's all in the oil, but I've never had a set of lower gears live more than 2 hours in any of my drives. I'll be using the neo oil from now on.

From an guy running NEO I sold him in a Baja 40 Outlaw with twin 575's and XR's

"Quick update.....wish I would have put a drive temp gauge on but......I don't know if the gear lube lowered the temp or not, I do know that I have put my drives thru hell this past month and they are still together. Ran the Biloxi PR about 130 miles at 4500-5000RPM's . Just changed the lube and it was not burnt or smelled bad....."