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motor oils prefered on performance boats

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Old 10-28-2014 | 01:20 PM
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Depends on what engine is in your performance boat. A stock merc motor could run on 99 cent Wal Mart oil and would run for thousands of hours. I have done it, 3000 hours using cheapest oil possible in a stock small block changed whenever. HiPer engines may be a different story.
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Old 10-28-2014 | 02:50 PM
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Originally Posted by SB
How did I answer his post before his post posted ?

Wholly f*k I'm fast !!!!!!!

LMAOF !!!!
I was wondering the same thing. Clearly I was wrong with what I said. I was still thinking about it but my fingers started working before my brain. Yes, it goes to the filter than the coolers, than back to the block. But wouldn't it still be more accurate in the block which retains more heat?
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Old 10-28-2014 | 03:02 PM
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Originally Posted by benjen
I was wondering the same thing. Clearly I was wrong with what I said. I was still thinking about it but my fingers started working before my brain. Yes, it goes to the filter than the coolers, than back to the block. But wouldn't it still be more accurate in the block which retains more heat?
No.

And don't sweat it. Not all of us will shove a Book of Somebody Else's Knowledge up your butthole over it. We all do it.

The two schools that fight against each other is:

1) Oil in pan

vs

2) Oil after cooler before it goes back in block.

I like #1 but won't battle the people over #2. I see some resoning in it, just not as much as #1.

I want to see, as much as I can, how hot the oil get's after it goes thru everything. This will give you an idea of what your oil additives (think depletion and etc) are being subjected to.

Again, the hottest oil temps and the ones we care about more are what's happening further up in the motor - but until we get (as we joked about earlier) sensors in the bearings/pistons/valvesprings etc.
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Old 10-28-2014 | 03:14 PM
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Originally Posted by benjen
I was wondering the same thing. Clearly I was wrong with what I said. I was still thinking about it but my fingers started working before my brain. Yes, it goes to the filter than the coolers, than back to the block. But wouldn't it still be more accurate in the block which retains more heat?
No. Why would you want to screw up your temp value?

Having the RTD in the oil will give you an accurate oil temp reading.
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Old 10-28-2014 | 03:16 PM
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Originally Posted by vintage chromoly
Something wacky is going on with the site.
I couldn't see Scott's response until after I posted 15 minutes later.
Nah.

I'm just so freakin fast I see everyone's responses before they type them !

LMAOF.
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Old 10-28-2014 | 03:17 PM
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See !!!!!

Wholly schit this is funny.
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Old 10-28-2014 | 03:22 PM
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Something wacky is going on with the site.
I couldn't see Scott's response until after I posted 15 minutes later.
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Old 10-28-2014 | 04:20 PM
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Benjen, the temp of the oil in the block is sorta like the temp of the oil coming out of the cooler. Block temp reallyb doesn't matter. The oil pan temp is the by product of what's happening in the motor. In my opinion the best way to monitor it is a pan and after the cooler. The two readings will give a better idea of what's going on in the motor. BBC's have a terrible cooling system. They cool from the bottom up. All the heat in the motor is in the top, this is where combustion takes place. If you do a hard run and shut it down touch the front and back of the heads in all 4 corners then the sides of the block. Big big difference in temperature.
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Old 10-28-2014 | 04:23 PM
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From what I understand the best to way to do it is as black baja describes, so you can measure the delta or difference from before and after the oil has done it's work.
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Old 10-28-2014 | 04:51 PM
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Originally Posted by lil red
From what I understand the best to way to do it is as black baja describes, so you can measure the delta or difference from before and after the oil has done it's work.
This would be considered the ( delta T) the difference of output and input.
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