For those who missed it, I am re-posting a paragraph from a thread about antifreeze. Here a member is talking about additional benefits gained from using SCA Diesel antifreeze in an engine where the manual does not specify, or require it.
His perspective bolsters the argument that there is definitely a benefit from doing so.
MF being concerned about internal corrosion, now seems to be the logical reason for their suggesting annual coolant replacement.
To me, annual replacement still seems to be excessive, regardless of which type of coolant you use.
fieldserviceengineer, Re: Antifreee question?
Even if an engine does not require supplemental coolant additives for cylinder wall cavitation pitting protection, the common supplemental coolant additives available will improve general metals corrosion protection. Nitrite as found in the old Nalcool product, Pencool additives, Fleetguard DCA2, Caterpillar coolant additive, Baldwin BTE, as well as Wix and Napa products....will improve the ferrous metals corrosion resistance even if the engine does not need that additive for pitting protection. The other supplemental coolant additive is sodium molybdate. It is a potent aluminum corrosion protection agent as well as being part of the most robust pitting protection available. More engines are being built with increasing amounts of aluminum content such as cylinder heads, water pumps, as well as thermostat housings and now radiators. Coolant additives composed of nitrite and molybdate are sold by Baldwin as BTA, Fleetguard as DCA4 as well as there are several coolants that use the combination of nitrite and molybdate as all or part of the ptting protdection and general metals protection. The most common (but not the only) are Fleetguard ES Compleat, Fleetguard Fleetcool EX, Caterpillar ELC OAT with nitrite and molybdate, Caterpillar Diesel Engine Antifreeze Coolant, Shell Fully Formulated Phosphate-Free, plus a few others whose names escape me at the moment.
Entire thread: http://www.tractorbynet.com/forums/oil-fuel-lubricants/228436-antifreee-question.html
His perspective bolsters the argument that there is definitely a benefit from doing so.
MF being concerned about internal corrosion, now seems to be the logical reason for their suggesting annual coolant replacement.
To me, annual replacement still seems to be excessive, regardless of which type of coolant you use.
fieldserviceengineer, Re: Antifreee question?
Even if an engine does not require supplemental coolant additives for cylinder wall cavitation pitting protection, the common supplemental coolant additives available will improve general metals corrosion protection. Nitrite as found in the old Nalcool product, Pencool additives, Fleetguard DCA2, Caterpillar coolant additive, Baldwin BTE, as well as Wix and Napa products....will improve the ferrous metals corrosion resistance even if the engine does not need that additive for pitting protection. The other supplemental coolant additive is sodium molybdate. It is a potent aluminum corrosion protection agent as well as being part of the most robust pitting protection available. More engines are being built with increasing amounts of aluminum content such as cylinder heads, water pumps, as well as thermostat housings and now radiators. Coolant additives composed of nitrite and molybdate are sold by Baldwin as BTA, Fleetguard as DCA4 as well as there are several coolants that use the combination of nitrite and molybdate as all or part of the ptting protdection and general metals protection. The most common (but not the only) are Fleetguard ES Compleat, Fleetguard Fleetcool EX, Caterpillar ELC OAT with nitrite and molybdate, Caterpillar Diesel Engine Antifreeze Coolant, Shell Fully Formulated Phosphate-Free, plus a few others whose names escape me at the moment.
Entire thread: http://www.tractorbynet.com/forums/oil-fuel-lubricants/228436-antifreee-question.html
