Anyone change their coolant? At what mileage or years after ownership did you change it at?? I was thinking of doing mine but it seems to test fine but with aluminum heads and radiator I think it should be changed a bit more often then with cast iron heads.

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97 Ford F150 4x4 XLT supercab

• Empty beer cans in bed
• Half eaten hoagie under front seat
• Dog hair on seats
• Various soda cans and water bottles.
• And full time resident fishing pole and tackle.(removed lantern , afraid it would explode from heat)

 

Do what the manual says!

RULE OF THUMB: 2 years or 24K.


FYI: If you do it yourself, make sure you get ALL the air out of the system. These new engines have been known to get air trapped in the head around a piston and cook one side of a piston! In other words, use a presurized flush system!


I actually drain and fill mine every other year and flush it the next.

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Rand

98 Ford Expedition 4X4 XLT
5.4, 3.73s, 17" wheels,
Homemade 3" "COLD" Air-Box
mod, SuperChip, Amsoil
everywhere but tranny, Perma-
Cool combo 6 pass trans/oil
cooler (FQR 5.4 @ 50K)

 

Actually, My book on the '97 says to change it in 4 years.

 

Just spent 5 minutes skimming over my '99 Scheduled Maintenance Guide. The first time I noticed anything about changing the green coolant was at 105,000 miles. This just can't be. I must have missed at least one other earlier change, but for the life of me, I can't find it.

 

My local dealer's electronic maintenance email schedule recently told me to come in for my 15,000 mile service which included a flush of the antifreeze !!!

They gotta be kidding!!!

We hardly changed it at 15,000 back when alchohol was used for antifreeze!

Check out http://www.net-link.net/~n8jg/F-150/2000%20F-150%20Owner's%20Manual.pdf for the owner's manual -- which does not include the antifreeze maintenance replacement schedule.

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Y2K™ Jim

Toreador Red, Keyless XLT SC SB 5.4L E4x4 4wDisc/ABS, 3.73LS, Skid, HD 7700# Towing, LT-245's on Chrome, Tube-Steps, Captain's, 6CD, Tonneau, named: "Nick"

 

Hey Y2K....
Your showing your age, I remember those
alchohol days. :-)

Anyhow does the 300 I6 need pressurized flushing too?? or will the good ol drain and fill method I've used for years work.

 

Hey, Jimbello:

I heard it from that fat old man I see in the bathroom mirror every morning.

You can't beat the old shop-vac exhaust air into the upper radiator hose flush technique.