This may be "apples to oranges", but a lot of concern is made in this group
over the anti-cavitation additives.
My '88 Cat 425 has never run coolant additives, and it has 896,000 miles on
Another truck I used to have had the DT 466 motor, (similar to the 7.3 PS)
and has never run any additives, and went over a million miles before a
standard rebuild, and nothing out of the ordinary was found.
Both trucks run regular antifreeze, 50/50 mix, and both are changed twice a
I do the same with my ton dually 7.3.
Just my .02,
99 F350 7.3PS
Dually, CrewCab 4X4
@adelphia.net> wrote in message
> You say you have been driving this truck for the past 5 years. Have you
> maintained the radiator with the proper concentration of anti-cavitation
> treatment? Do you test the levels regularly? If you haven't or don't, my
> guess is that you have one or more pinholes between the cylinder and the
> water jacket. If this is the case, prepare yourself to bend over and grab
> your ankles. Yes, it's going to hurt.
> <chasman3> wrote in message
>>I have a 1995 F-250 XL w/189k on the odometer. Coming home yesterday,
>> the truck was running a little warmer than usual but nothing serious
>> (I thought) I was about 50 miles from home and just drove but kept an
>> eye on the heat. It kept climbing, slowly, throughout the drive home
>> and when I pulled in the drive, was just about on the upper limit
>> line. Shut the truck down and loosened the cap to relieve a little
>> pressure since the upper hose was pretty tight. This is my first
>> diesel truck and although I have driven it for the last 5 years, I
>> haven't had to work on a lot of things on it.
>> Where is the thermostat located (Where the upper hose comes out of the
>> water pump?) and is there anything else I might be aware of or look