Hi guys,

I think that my Tahoe is the first vehicle where there is actually enough room under the hood to install an oil-pressure-precharger. I've always been intrigued by these things. http://www.amsoil.com/StoreFront/amk.aspx

Anyone actually have one in use? Or installed one?

Sincerely,

Rob :)

From what I read, the failure of these engines is not due to normal wear. They seem to suffer from some catastrophic failure unrelated to lack of lubrication. I read on these boards repeatedly about engines with cracked blocks with perfect crosshatching in the bores. I think I would save my money for a splayed main rebuild when the block cracks.

I've put them on Dmax's in conjunction with the dual bypass system, works well.. lots of money though

From what I read, the failure of these engines is not due to normal wear. They seem to suffer from some catastrophic failure unrelated to lack of lubrication. I read on these boards repeatedly about engines with cracked blocks with perfect crosshatching in the bores. I think I would save my money for a splayed main rebuild when the block cracks.

Wow. On the surface, one would think that engines with cracked blocks would either be due to:

1) Demanding torque and HP in excess of designed limits.
2) Over-heating the engine causing boil-over, localized hot-spots and resultant cracking.

Assuming that these two items are under control, do we not have several members who have engines and blocks pushing 500-600K miles? Could this not potentially be 1M miles if we take care of the other wear item, which is primarily on cold-startup?

I'd be happy to drive my Tahoe and Burb for 1M miles if they will go so long and not crack a block, or toss a wrist pin or become unbearably expensive to run (e.g. $7/gal diesel).

Any other thoughts?

Sincerely,

Rob :)

My $.02. First does the truck sit for extended times more than a few days? If yes I might condsider it. If not I'd spend money on other stuff first. I would say a dual remote filter is a better improvement for the money. On diesels the soot in the oil is the killer. I'd say as equal to or more than cold startup. Plus with a dual remote system you get a little more capacity. And depending on where you mount the filters they may help cool the oil a bit more too.
On a turbo diesel its more important you should idle a bit first to let everything warm up before driving too hard. (Its ironic with all the overheating problems you hear but with a stuck open thermostat the 6.5 takes a long time to warm up and won't get to good normal operating temp with just normal driving.)

I really disliked the horizontal oil fitler and wait for oil pressure to build at oil changes. I now have remote vertical filters that I fill when installing. In comparison on a normal crank up I see pressure pretty darn quick on the quage.

I'd like to join the 1,000,000 mile club myself. I like the idea of oil precharge, but have to agree, that it seems like other factors seem to kill the engine far sooner than any oil related problems. I wonder if any oil additives would be a more cost effective solution for cold starting?

My boss had a late 70's Suburban. Had the oil changed, went down the road, and the oil pressure went to zero (0). Added oil, and got it to a shop and the last few miles was back to zero (0) oil pressure. Found oil filter double gasketed (oil gasket from old filter stuck, and new filter screwed on over it) It would only leak when pressure rose under load and on the road conditions. He had that Suburban up until a few months ago, and never once had any oil related problems with it. His only saving grace he thought he had was the Slick50 he had in it. Truth or tale? Don't know, but still ran fine, 'cause I drove it myself years later.

Why not have oil pressure before you start your engine?
For about the last 11 years I have been use a Moroso (1 ½) qt. oil accumulator with solenoid to precharge my oil system on an old 4BD1. After installing a turbocharger, I wanted to make sure the bearings were prelubed. I plan on installing one on my lly before winter gets here. I think it's even more critical in the winter; the oil is thick as molasses.

I plan on installing one on my lly before winter gets here. I think it's even more critical in the winter; the oil is thick as molasses.
That's why synthetics are so nice):h