I just read through the two threads (links) above and have a few comments.
I've pretty much ran the rack in this area. I've installed Builder77s 1970XE 5-Micron filters plus an Amsoil by-pass filter (see the black filter on the firewall), plus a 24 volt Bendix pump that pre-lubes the engine.
I'm in a unique climate situation up here in Northern Minnesota. Cold weather is a challenge therefore I elected not to go with the Jatonka style check valve system. My fears may be unfounded but I have concerns about prolonged by-passing during cold morning startups caused by cold oil trapped in the filters. I also fear the pre-lube pump would have trouble clearing the cold oil from the full filters on zero mornings. In warmer climates I'd say Jatonka's system, linked with the Amsoil bypass filter is the way to go.
For the ultimate in protection I've also installed a pre-lubber along with a 150W and 450W oil pan heater pads on the bottom of the oil pan. The 150 watt pad will keep the oil warm if it is plugged in all the time but the 450 is nice to have for a quick shot if the truck hasn't been plugged on overnight or if I'm relaying on the generator to start it up. I also have 600 watt front and read freeze plug block heaters that I use the same way --- one for constant and both as an added quick boost.
In winter I don't like to run the pre-lube pump without the oil being warmed. It takes about 30 seconds for the pump to build oil pressure in the summer and about a minute in the winter (cold starts) with at least one oil pan heater plugged in.
All in all, I may be over killing the problem but I feel it's the ultimate solution. Since installing the new LDS engine it has never been dry started. Having said this, installing the pre-lubber was a pain in the butt --- even with the engine out. The heater was modified and mounted up under the dash and the plumbing for the pump was a pain. In warm weather the Jatonka solution is a lot simpler. Sometimes you can overkill a problem.
Oh yeah --- I've also got three oil gauges. One between the pre-lube pump and the 1970XEs, one after the 1970XEs and one at the turbo (end of oil galley). It's interesting to watch the gauges respond to the pre-lube pump. With the oil temp gauge which I felt necessary to have then running the electric fan and not the water pump fan, I've got a good window on the world.
There has been a LOT written about this. I hope this helps shake-out the subject.
