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  #11  
Old 06-18-2013, 12:16 PM
Flatwaterfooter Flatwaterfooter is offline
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  #12  
Old 06-18-2013, 12:25 PM
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  #13  
Old 06-20-2013, 10:31 AM
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rspiecha rspiecha is offline
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I use Royal Purple 15W-40 and extended capacity K&N HP-6002 oil filter on my 2005 MCX engine. I do a Blackstone Oil analysis each change in the fall. I average about 40-50 hours a season. Oil analysis comes back with a glowing report. I'll try and post the report with a MC dealer installed oil, followed by three changes with Royal purple.


From Report (2012): RP
Your Indmar looks a little better every time we see it. There was still some fuel in this sample, so we can't
give you a perfect report yet, but we like the direction it's headed and with any luck, it will disappear next time. Silicon
is washing out of the engine nicely and we can tell that it's not from abrasive dirt because wear metals look fine. The
TBN was still nice and strong at 5.9, so a lot of active additive was left. Low insolubles show good oil filtration and no
water or coolant was found. It looks like this engine will be ready to go when spring rolls around.

From Report (2011): RP
Wear is improving nicely in this most recent report from your Indmar engine. You're running the oil even
longer than last time, but most metals held steady, and iron dropped even further. Silicon came down as well; at 34
ppm, it's probably still higher than we'd like to see, but we're not going to worry about it unless it starts to trend back up
again. Fuel improved as well, down to 1.3%, which is below the problem threshold. The viscosity was still low, but
comparable to what we've seen before, and the TBN was still great, at 7.2. This engine keeps looking better!

From Report (2010): RP
While iron has improved, silicon remained unchanged in this second sample from your Indmar 5.7L marine
engine. The silicon could show abrasive dirt contamination in the oil, so check your engine's air filtration system for
leaks. The 2.0% fuel dilution along with some residual oil from the last fill is the likely causes for the lower viscosity, and
we will expect for both to improve next time. The TBN at 8.1 shows plenty of active additive remaining in the oil for a
longer run. Check back after your next normal oil change for another look at the silicon and fuel dilution.

From Report (2009): Dealer Changed Oil from fall 2008
The high iron and silicon are not unusual finds in the oil from your new boat. In fact, we would have been
surprised if we didn't find them. The wear is high due to break-in of new parts, while silicon is from sealers and
sand-casted parts. Universal averages show typical wear metals for oil from this engine after 50 hours use. We expect
your engine will look that good or better in two or three more oil changes. The 4.8 TBN shows lots of active additive left
(1.0 is low). The viscosity was 5W/30 and no moisture or fuel was found. At 110 hours, this engine looks solid.


The fuel in oil is from running boat on trailer with bucket for only 30 minutes. Best scenario would be to run boat hard on the lake then do the oil change.

Rob
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Last edited by rspiecha; 06-20-2013 at 11:09 AM.
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  #14  
Old 06-20-2013, 11:13 AM
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Quote:
Originally Posted by rspiecha View Post
I use Royal Purple 15W-40 and extended capacity K&N HP-6002 oil filter on my 2005 MCX engine. I do a Blackstone Oil analysis each change in the fall. I average about 40-50 hours a season. Oil analysis comes back with a glowing report. I'll try and post the report with a MC dealer installed oil, followed by three changes with Royal purple.

Rob
Being the techno-geek that I am, I would love this kind of info and really enjoy reading it. Where do you send your oil to be tested and what is the cost of doing so?
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  #15  
Old 06-20-2013, 11:16 AM
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CantRepeat CantRepeat is online now
 
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I made an amazing discovery the other day. I had always gone to napa to pick up the Rotella 15W40. I was walking through Walmarts auto section and came across a big bucket of Rotella 15W40 for cheap. I never even thought to look and see if they sold it. Much better price and size then Napa.
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  #16  
Old 06-20-2013, 11:22 AM
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I made an amazing discovery the other day. I had always gone to napa to pick up the Rotella 15W40. I was walking through Walmarts auto section and came across a big bucket of Rotella 15W40 for cheap. I never even thought to look and see if they sold it. Much better price and size then Napa.
Isn't "a better price than NAPA" a redundant statement?

Tractor Supply has it too - I think last time I looked, they had 1.0 gallon jugs, 2.5 gallon jugs and 5 gallon buckets.
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  #17  
Old 06-21-2013, 12:26 AM
TeamAllen TeamAllen is offline
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It on sale right now at Sam's Club.
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  #18  
Old 06-21-2013, 03:37 AM
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Grant777 Grant777 is offline
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My dealer insists on Castrol Edge 10w60 (full synthetic) in my 5.7l MCX. He reckons that the high ambient temps (100-120F) at the moment require the extra viscosity at start. I'm sure someone has some comments on this. I would personally use the recommended 15w40, but I'm no expert.
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  #19  
Old 06-21-2013, 07:03 AM
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CantRepeat CantRepeat is online now
 
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I thought the one of the biggest benefits of synthetic was longer change times. What I don't understand is if I'm going to change the oil every year regardless of use then why spend the extra dough?
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Last edited by CantRepeat; 06-21-2013 at 10:17 AM. Reason: not enough coffee, spell like ****.
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  #20  
Old 06-21-2013, 10:11 AM
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rspiecha rspiecha is offline
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Change time is still the same as conventional oil. I use RP in boat because I use it other vehicles and buy it in 5 gallon buckets. I do oil analysis and have always been happy with RP. Before switching, Rotella also had good results.
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