pburd
New member
Hello all, I am a new TBN member and first time owner of a Mahindra tractor, (5010 Gear). I am also a retired U.S. Coast Guard Chief Machinery Technician with an abnormal affinity for wanting to know every nut and bolt of a piece of equipment and preventative maintenance procedures. This exhaustive introduction is a segway into some concerns I have in regards to maintenance recommendations from the Owners Manual.
1. Idle time. The Owners Manual (OM) stresses the need for what I consider long periods of idling for warm-up and cool-down. I question this for a couple of reasons, a) the OM for my John Deere, (Yanmar engine) recommends minimal idling and doesn't address warm-up or cool down. b) my experience is that abnormal periods of idling causes accumulation of soot on the injector tips, cylinders and in the engine oil. Both are a result of low engine temperatures that prevent optimum combustion. Of course my experience is in a marine environment and diesel technology has advanced over the years.
2. The OM recommends engine oil with an API of CD and CE grades. Both of these grades are obsolete. The currents grades for diesel engines as recommended by the American Petroleum Institute (API) are CF, CG, CH and Cl depending on the engine application.
3. The OM recommends straight weights or 10W-30 depending on ambient temperatures. I am sure these oils are adequate but I have been using a 5W-40 with an API of Cl-4 PLUS which can be used in place of all the current grades, i.e., CF, CG and CH. I personally believe this oil superior in all aspects and believe the OM recommendations to be outdated.
I will add that the engine is manufactured in Korea by Daedong Ind.
There is my rant and would appreciate any cogent and thoughtful comments and/or feedback.
1. Idle time. The Owners Manual (OM) stresses the need for what I consider long periods of idling for warm-up and cool-down. I question this for a couple of reasons, a) the OM for my John Deere, (Yanmar engine) recommends minimal idling and doesn't address warm-up or cool down. b) my experience is that abnormal periods of idling causes accumulation of soot on the injector tips, cylinders and in the engine oil. Both are a result of low engine temperatures that prevent optimum combustion. Of course my experience is in a marine environment and diesel technology has advanced over the years.
2. The OM recommends engine oil with an API of CD and CE grades. Both of these grades are obsolete. The currents grades for diesel engines as recommended by the American Petroleum Institute (API) are CF, CG, CH and Cl depending on the engine application.
3. The OM recommends straight weights or 10W-30 depending on ambient temperatures. I am sure these oils are adequate but I have been using a 5W-40 with an API of Cl-4 PLUS which can be used in place of all the current grades, i.e., CF, CG and CH. I personally believe this oil superior in all aspects and believe the OM recommendations to be outdated.
I will add that the engine is manufactured in Korea by Daedong Ind.
There is my rant and would appreciate any cogent and thoughtful comments and/or feedback.
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