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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.
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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viscosity ranges
Posted by Steve on March 21, 2006
When CJ-4 oils hit the streets, will you be offering grades other than 15W40? for example 10W30, 5W30 or 5W40 If not initially, when?
One of the things we are keen to ensure is that we offer products which offer genuine benefits for the consumer, rather than just change for change sake. Initially we will only launch 15W40 CJ4 products as these are the primary recommendation for North American OEM's. However we are looking at offering some further variants in the future.
Use of new oil technology
Posted on March 14, 2006
I am confused about where I can use the new oils?
The new API CJ4 lubricants are fully backward compatible, and can be used on either 2007 specification engines or older engines. Any non CI4, CH4 or even CF4 lubricant should not be used on 2007 engines as it will affect the life of the after treatment.
