Diesel motor oil/fuel filter question
I have a 2005 Dodge 2500 with diesel engine with 72K miles. local large truck repair service manager suggested I use Baldwin oil filter BT7349 Baldwin Fuel Filter PF7977 any of you guys...
Forum Discussion
Fuel filtration is not nearly as important as having an adequate fuel supply. The diesel helps to lubricate the injectors and fuel starvation from chipping the engine or filtration problems will rapidly increase the wear. Adding a lift pump with a dual filter setup is a good idea.
I change my oil at 7500 miles and use a mineral base stock oil (Valvoline Premium Blue which is recommended by Cummins). My truck is used 50% of the time with heavy hauling or towing which puts it half way into the severe duty category and I adjusted my change interval accordingly. If I went by the computer I would be changing it at 15K intervals. I could change it at shorter intervals but that would be a complete waste of time and money. 3000 mile oil changes was common practice in the 1960's but oils and engines have improved considerably in the past 50 years and this service interval makes absolutely no sense at all.
Synthetic base stock oils are worse than mineral based for use in diesel as the diesel synthetic oils are 5W-40 and with polymer shearing (problem with multi-grade oils) there is a much greater chance of metal to metal contact under full power. I am going to change out the oil and filter at 7500 mile intervals to remove soot and sludge anyway so zero gain in going to a synthetic base stock oil. Any gallon of oil is 25% additives and it is the formulation of the additives that determines the protection the oil provides the engine. The additive mix is part of the reason I do not use the GM recommended Chevron Delo which is all the Chevy dealers stock with my Duramax.
I change my oil at 7500 miles and use a mineral base stock oil (Valvoline Premium Blue which is recommended by Cummins). My truck is used 50% of the time with heavy hauling or towing which puts it half way into the severe duty category and I adjusted my change interval accordingly. If I went by the computer I would be changing it at 15K intervals. I could change it at shorter intervals but that would be a complete waste of time and money. 3000 mile oil changes was common practice in the 1960's but oils and engines have improved considerably in the past 50 years and this service interval makes absolutely no sense at all.
Synthetic base stock oils are worse than mineral based for use in diesel as the diesel synthetic oils are 5W-40 and with polymer shearing (problem with multi-grade oils) there is a much greater chance of metal to metal contact under full power. I am going to change out the oil and filter at 7500 mile intervals to remove soot and sludge anyway so zero gain in going to a synthetic base stock oil. Any gallon of oil is 25% additives and it is the formulation of the additives that determines the protection the oil provides the engine. The additive mix is part of the reason I do not use the GM recommended Chevron Delo which is all the Chevy dealers stock with my Duramax.
