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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.
MTX Synthetic 75W - 140
Posted by Michael on September 27, 2006
I am currently restoring a 1973 Suzuki GT550 2-stroke motorcycle here in Switzerland. Recently I purchased MTX SAE 75W-140 gear & final drive oil for the transmission. Apparently it was developed for 2 stroke engines. Can you please advise? Thanks in advance, Michael
This really is quite an interesting one, as i am sure you are aware this lubricant is a purpose made gear oil, and is ideally suitable for the transmission, as your motorcycle is a 2 stroke the oil only needs to lubricate the gearbox. A 4 stroke motorcycle however needs to lubricate the engine and gearbox, which would require a different type of lubricant.
Hydraulic Fluids
Posted by steve on August 3, 2006
Comparing price and effiency for operating hydraulic systems what is the best weight fluid to operate systems on?
An Iso 46 or ISO 68 fluid would be the most sensible options:
1. These fluids are near the viscosity where hydraulic pumps are the most efficient.
2. Antiwear protection is not quite as good with thinner fluids.
Castrol offer a number of Multiviscosity fluids like Castrol dual range are more efficient over a wider temperature range than monograde fluids.
wrong oil?
Posted by Steve on July 21, 2006
I’m using a Castrol Magnatec 10W/40 in a Nissan TD-27T engine.
Is it wrong?
As this engine is a diesel engine, Magnatec 10W40 is suitable for this vehicle, but a better product would be something that has specific diesel performance. so API CI4 plus performance would be ideal. Consequently a product such as castrol Tection Extra would be ideal.
waste oil in diesel fuel
Posted by Steve on July 19, 2006
What would you have to say about the practice of blending in small percentages (under 5%)of filtered used crankcase oil into diesel?
this practice has been used for many years with little detrimental effect, in fact Cummins used to market a technology called the sentinel system that did exactly this. However with modern emissions legislation getting tighter and tighter then this practice is not really acceptable any more. Also with 2007 engines having exhaust aftertreatment fitted in the exhaust, this practice could actually cause damage.
Syntec 5W40 Group III
Posted by Steve on July 16, 2006
Is there any major difference between group III and Group IV oils for use in a VW diesel? Syntec 5W40 has the VW cert of 505.00 so it is the correct oil but are Group IV’s better?
There are 5 groups of oils which are used for the production of finished lubricants, these are known as base stocks. basically group I is a refined mineral oil, group II is a highly refined mineral oil group III is a partial synthetic oil, Group IV is a full synthetic mineral oil, and finally group V which is specialist oils. The cost of the base oil increases from group I to group IV, aswell as the performance, consequently group IV products tend only to be used when strictly necessary due to the increased cost (which can be 3 to 4 times that of a group I - but with the performance to meet.
VW 505.0 can be met with a partial synthetic product, sure you will get better performance from a full synthetic, but need to way up the cost benefits.
