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Steve Goodier
Director of Technology
Castrol
(800) 777-1466
Steven is an engineering graduate of Salford university (UK), and has spent his career working with engines of one type or another. After graduation, Steven spent several years working in the...more»»
Feel free to ask Steve questions relating to fluid requirements in the refuse industry that include Engine Oil, Hydraulic Fluids, Greases, Transmission Fluid, Coolants, and Gear Oils.
synthetic oil
Posted by Steve on June 7, 2006
would it be safe to use synthitic oil in an older engine with over 100,000 miles on it
Synthetic oils have many benefits over mineral based oils, including improved thermal capabilities, improved deposit control, and wear protection. These sort of benefits are suitable for all engines both new and old (>100,000miles)
bearings and grease
Posted by Bob on June 7, 2006
I am taking a test and the question is: “Either over- or underlubrication can cause bearings to overheat.” True or False?
The contest is that of pumps of sewer treatment plants. I am a professional engineer, with the EPA of Atlanta, in the water program, and they have paid forty-five (45) Dollars for me to take this course, since I review reports from wastewater treatment plants, almost daily. In fact, I have examined more than 120 reports, since February 19 of this year.-
Well, anyway, any response would be appreciated.
Over lubrication can be as bad for bearings as under lubrication, however the type of failure can be quite different. With under lubrication, the consequences are obvious with debris, and over heating being major problems which will lead to extreme short life.
However with over lubrication problems such as cavitation and erosion can cause damage to bearing surfaces which can also be disastrous for bearings.
Using Diesel engine oil in my Gasoline engine?
Posted by Steve on May 29, 2006
I have heard that you can run diesel engine oil in gasoline motors as long as the formulation is similar ie: 15W40 or 10W30. Is this true? Are there benefits in running diesel engine oils in gas engines based on their superior protection additives?
I would like to try it in my 2005 4.6L V8
A gasoline engine oil is formulated differently to a HDD (heavy duty diesel) oil, the main reason for this is the need to handle the combustion by products that are created (diesel is dirtier than gasoline). If you were to use a gasoline oil in a heavy duty truck you could expect to see high levels of sludge, wear and eventual engine problems; however using the other way around can have advantages. Sludge protection and deposit control on HD lubricants are strong as well as wear protection. On most high performance engine lubricants you will see that they have both diesel (API C) and gasoline (API S) performance.
Recycling used engine oil technique
Posted by Steve on May 20, 2006
Dear Sir,
If I can collect good amount of used engine oil and I want to recycle it to re-used ; what is the best techniques for such project?
What is the expected quality of the product after the process and where it can used? any further information I will be glad to have them.
Recycling of used engine oil is a complex, and energy consuming exercise. During the life of a motor oil it is exposed to large quantities of impurities, increase in acidity, depletion of additives, and oxidation. Therefore even with the high cost of crude oil at the moment it rarely makes economic or environmental sense to recycle a used motor lubricant for subsequent use as a motor oil. The best option for re-use is to sell to a specialist such as safety Kleen, who can process the oil and use for non- motor oil applications.
Synthetic 75w/140 Gear Oil
Posted by Steve on April 19, 2006
Will the Castrol SynGear 80w/140 meet the same requirements as the Synthetic 75w/140 application for the Ford F250 trucks? I see they are both GL-5 products. I would assume that the 80w/140 would be ok for top-off but for a full fluid exhange, the Ford High Friction modifier would need to be added.
The axle you mention is a limited slip differential, and is very lubricant sensitive, the 75W140 and the additional friction modifier you describe has been specially formulated to alleviate some noise issues that were seen when a conventional lubricant is used. If you use any other product this will affect the warranty of the axle, therefore I would recommend that you stick to the Ford recommendation.
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