As an engine builder for almost 25 years, I have seen engine designs change in ways that really requires clean oil and diligent maintenance. One place is the pickup screen. Prior to 1995, most pickup screens, if not all I'd seen were at least 3 to 4" diameter, with generous surface area. As of about '95, it seems all the newer engines I've been inside of have approximately 2" pickup screens. The surface area has been greatly reduced. The net effect is that if the engine is sludging, the small pickup will cover up and block flow much more rapidly. I had a 28,000 '97 dodge 318 in a p/u in here a few years ago, with rods hanging out of the block. Sludged screen. since this wasn't a problem before, I think the manufacturers are trying to save pennies per unit, figuring if the light recommended oils are used, and maintenance is diligent there won't be any problems. On the other hand, if maintenance is less than nessessary, then the resultant failure is the owners fault, and can fall under the term "planned obsolecence".
Another place where oils really take a beating in in the cam gear drives on the average 4 cam engine.
In my opinion, I'm glad I tried autorx in my shop. I can head off problems for my customers before they become devastating.
I wonder what other area's y'all think are causing the sludging seen so much in the newer engine designs? Steve
Another place where oils really take a beating in in the cam gear drives on the average 4 cam engine.
In my opinion, I'm glad I tried autorx in my shop. I can head off problems for my customers before they become devastating.
I wonder what other area's y'all think are causing the sludging seen so much in the newer engine designs? Steve
