Progress pics of the build.... pro 1200 sapphire

D Luke

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Apr 12, 2015
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MI
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Derek
Dave are you going to switch to full synthetic in the van? I think I'm going to stay with the factory recommended blend unless I hear a good reason otherwise.
 

Chris A

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Sep 25, 2007
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OH
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Chris
I use full synthetic on my Direct Drive Trucks for no other reason than to extend the change interval. Went to 3000 miles/~100 hours between changes with my mechanic's blessing.
 
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Mark Saiger

Mr Happy!
Joined
Dec 26, 2006
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11,199
Location
Grand Rapids, MN
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Mark Saiger
We use Rotella T 15-40 in ours....have been doing this for years in our Direct Drive Butlers in GMC Vans

We also change out the oil and filter way early some could say at 1000-15000 road miles...and way before the extra miles would add up from running the Butler (or direct drive) to even total 3000 miles.

We have vans running with tons of miles and tons of hours....one right now cleaning part time (a 93 Butler and GMC) has 250,000 road miles and over 11,000 hours on the Butler unit for a total of about 613,000 miles on that original motor....

So, for us....oil is cheap!

Keep in mind, you are ingesting air with dirt particles into that motor, so we find changing the oil more often, less dirt to cause abrasion and wear as well....

Just our philosophy and it has proved successful for a long time.

Rotella T is not a synthetic, but when my racing friends dyno test motors, they find the properties to be outstanding.
 
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Chris A

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Sep 25, 2007
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OH
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Chris
Oh and use good filters too! Truck has 98000 miles and 4700 hours now, hopefully the motor holds together for another 2k hours...
 
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