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  #11  
Old 04-05-2013, 01:30 PM
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93Prostar190 93Prostar190 is offline
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Page 14 of this .....
http://www.mastercraft.com/files/man...r%20Manual.pdf
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2008 Prostar 214 MCX
Previous 93 Prostar 190 1.5:1 GT40

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  #12  
Old 04-05-2013, 02:08 PM
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Quote:
Originally Posted by 93Prostar190 View Post
That's a nice little update right there.
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  #13  
Old 04-05-2013, 02:31 PM
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As an side note, my local MC service shop said they replace with Quicksilver gear lube used in Mercrusier I/O's. They said they do this because it is designed to still provide protection in the event of water intrusion.

http://www.walmart.com/ip/Quicksilve...Quart/16565456
"This 90W gear lube features improved emulsifiers to help protect gears should water enter the gear housing and tackifiers to improve oil film adhesion to gears and internal components. Quicksilver High Performance Gear Lube includes extra proprietary additives to protect from metal-to-metal contact and excessive wear."
I've not had a problem with water intrusion so I still just use the recommended by Reliable. I seem to remember other posts where people switched to 50w and their hubs ran cooler.
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  #14  
Old 04-05-2013, 02:39 PM
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Good luck finding 50W gear oil, most auto parts carry 75W & 90W, I found a Lucas product called "Hub Oil", shows a picture of an 18 wheeler on the bottle, does not state the weight, I had NAPA look it up and it is 60W, closest I could find. I was running 90W, but found it to run Hot especially during the 90+ degree summer days with a fair amount of breaking, I think the lower weight runs cooler.
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  #15  
Old 04-05-2013, 05:09 PM
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Quote:
Originally Posted by MattsCraft View Post
Good luck finding 50W gear oil, most auto parts carry 75W & 90W, I found a Lucas product called "Hub Oil", shows a picture of an 18 wheeler on the bottle, does not state the weight, I had NAPA look it up and it is 60W, closest I could find. I was running 90W, but found it to run Hot especially during the 90+ degree summer days with a fair amount of breaking, I think the lower weight runs cooler.

I believe it was 50w motor oil that was suggest in most documentation.

Do you have a part number for that hub oil product?
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  #16  
Old 04-05-2013, 06:06 PM
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My documentation says 50wt motor for 2005 trailer.
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  #17  
Old 04-06-2013, 06:56 AM
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I found Royal Purple 50 here for $9 a quart plus shipping.....

http://paceperformance.com/i-5154677...container.html

So the next question would be is how much do I need for 2 axle sets (4 hubs)? I'm going on my seventh season with original tires, hub oil and brake fluid. On the list for maintenance this spring once the boat is on the ShoreStation is new tires, bearing oil, brake fluid flush and caliper clean up / lube.
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  #18  
Old 04-06-2013, 07:05 AM
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Also found UFP oil on the Pacific Trailer site.....

http://www.pacifictrailers.com/trail...ub-oil-by-UFP/

So which do we think is going to be better. Royal Purple makes some good stuff and it's full synthetic, I'm confident UFP knows what they're doing and it's purpose blended. Oh decisions, decisions.........
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  #19  
Old 04-06-2013, 09:59 AM
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Quote:
Originally Posted by bturner2 View Post
I found Royal Purple 50 here for $9 a quart plus shipping.....

http://paceperformance.com/i-5154677...container.html

So the next question would be is how much do I need for 2 axle sets (4 hubs)? I'm going on my seventh season with original tires, hub oil and brake fluid. On the list for maintenance this spring once the boat is on the ShoreStation is new tires, bearing oil, brake fluid flush and caliper clean up / lube.
I changed mine this winter. The one quart bottle I purchased has 14 oz left. I know I wasted a couple of oz because I overfilled then removed a little.
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  #20  
Old 04-13-2013, 10:57 PM
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Napa has valvoline 50wt racing oil for around $6 a quart. As far as draining your oil out, just unthread the reliable cap and let it drain out. Thread cap back on tight and refill at allen plug. I just refreshed all 4 today with fresh oil.
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