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Building Integrity
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Date:  11-20-2015
Number of Hours:  0.50
Manual Reference:  Section 2
Brief Description:  VG's are telling a story

This whole VG thing is so flippin cool. I'm using small 1" long VG's to see if I can lower my oil temps even more and they are really telling a story. My First flight, the temps were lowered by 4 degrees. The second flight I moved them closer together and the temps went back up to 240 in cruise. So NOW I placed them in the same location but farther apart then the first 2 tries. I'm going to use this final temp reading to decide which distance apart from each other is the most affective. When I decide on that, I will start moving them fore and aft to find the sweet spot for these bad boys. If I can find a way to get the temps in the 220's by VG's alone I will be very tempted to call it a day and be done with em! I read a massive write up by Mobile 1 about oil temps. Their thorough testing of ALL major brands was really eye opening. The conclusion made more sense to me than any opinion I've heard to date. Basically, the oil will do a fantastic job cooling the engine up to about 260 degrees, which is when it starts to break down. At about 300 it starts getting into the really bad issues. HOWEVER, the BIGGEST killer of all engines is corrosion. And WATER is the culprit. SO, the study showed that a constant oil temp between 220 and 225 is the sweet spot. This is warm enough to boil off the water in your crankcase but cool enough to keep the oil doing its job. 180 degree oil temps are not my goal at all. I've seen water droplets on my air oil breather after a hot runup so I KNOW I'm killing that moisture. So I'm headed for that 220-225 sweet spot in cruise or at least in a climb out. I am very confident I will soon be seeing numbers in the 220's.
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3rd location to try

3rd location to try

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