A Detroit will typically run away when it starts sucking oil past the blower seals, as that's the only place in the combustion air side of the system where you have a vacuum. Anywhere else, be it the air box around the cylinders, inside the bore's, etc, is all under positive pressure created by the blower. This pressure will always be higher than the pressure of the oil draining back to the crankcase from anywhere.
As far as it getting past the rings, when that starts to happen, and oil gets into the air box, it tends to drain out the air box drains. I've seen engines so worn out that the air box would drain better than a gallon of oil out every few hours, and the engine still ran.
Too, I'll go on record and say that as a multi-grade oil warms up, it gets thicker, and as it gets colder, it thins out. In other words a 10w40 will act as a 10 weight at low temps to allow it to flow better and flow where a heavier weight oil won't flow enough to provide proper lubrication. Conversely, the 40 weight part of the specification means it will act as a heavier oil at higher temps to keep it from becoming too thin and not providing enough lubrication.
On that note I've got one customer who had thousands of hours on the inline 6-71's as well as a couple of 6v and 8v-71's without any problems.
In the end though I gave up arguing oils and filters with folks looooong ago. With all of the equipment owners I have encountered over the years, the choices of oils, and filters is as varied, and as much a matter or personal prefferenceas anything else.
That said, I try as much as possible to run a HIGH grade oil from LE in at least my service truck. I've seen it more than double turbo life in a customers machines that consistently wore then our due to it's operating conditions, but more impressive was the 12 year old 3306 CAT engine that, when measured out, came back standard on every measurement taken....after 12 years of running an excavator in a quarry. Now that's some good oil.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Show Coverage: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
