Loved wallingford....
I guess its cheap enough to warrant doing it.. Why the 203 though? I read alittle about it but cant remember it was a while ago..

 

According to many the T444e was designed to run a 203* T-stat, not the 180 or 195 T-stat that ford uses. Some claim ford used the lower t-stat for emissions purposes, really I think it is cooling system related. Typically T444e applications have larger cooling systems, eg. international school buses, than the fords.

Some ppl claim that the 203* stat helps the engine run a little warmer and therefore lets the engine have a more complete combustion giving the user better mpg as a result of a more complete burn. I must say I noticed a .5 or so mpg increase with it but I can't be sure if it was the stat or the new coolant. If you tow a lot many people recommend running the lower stats as to not stress the cooling system.

In my case, I live (like you) in a cooler area, I only tow a 9000 pound 5th wheel and the truck gets worked hard in the winter so overheating as big of an issue. If you lived in AZ and towed a lot then a lower stat would make more sense to me.

 

Rufus, you might be new to FTE, but it's obvious you aren't new to giving good advice.

Reps to you bro.

Stewart

 

Why thank you sir.

 

Wait so why can't you put elc in a early 99??

 

IIRC the biggest issue is the thread sealant on the injector cups does not like ELC and it could cause them to deteriorate.

 

why would the early 99 injectors be different than a late?

thought the only difference is the turbo size

 

No there are few differences:

https://www.ford-trucks.com/forums/9...fferences.html

 

Like husky said, it's not the injectors per say, but the sealant on the cups themselves. I think there are some other things in the motor the doesn't agree with ELC, but I couldn't tell you what exactly they are. I know there are guys running ELC in E99 and OBS trucks, but I wouldn't do it, I just run Fleet Charge instead.

 

yep I just cant understand why ford would change the cups between the early and late models, then again there are many things I dont understand about ford

where do you get your fleetcharge from?

 

Some times automakers have all the logical and rational of a 16 year old HS girl...

Usually you can find fleetcharge (or equivalent such as Peak Fleet Charge, Prestone Heavy Duty, Zerex Precharge, Shell Diesel Ready, Fleetguard Fleetcool, Fleetrite Fully Formulated) at any heavy truck shop.

Look for ASTM D6210 on the back of the bottle. If you see that your good. Just a heads up Cummins was the last to jump on the ELC band wagon so you should have NO trouble finding a ASTM D6210 ready coolant there. Napa typically has or can get Zerex Precharged.

 

thanks Husky

 

See my link in post number 4 above for full ELC information.

Regarding ELC in E99's, here is the following information found in post number 5 in the aforementioned link above:

The following information from Gooch pertains to why ELC's are not recommended for use in early '99 7.3L PSD's.
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Mostly it's the injector cups. International, who made the engine, found some compatibility issues with the older injector cup material, sensors, front cover, seals, gaskets, o-rings, and probably some other stuff when using coolants that contained organic acid technology (OAT). Coolants like ELC's (usually Red) and G-05 (usually Gold) will have these OAT's. Conventional coolants (usually Green) will not.

So International revised those components on all 2/2/99-up build engines (SN 940614-up), and began recommending and factory filling with HD ELC coolants mid-year 2000. Never looked back.

You could use HD ELC's in the older engines, but you run the risk of having to replace the cups and maybe some other stuff. I always try to recommend conventional coolant meeting ASTM D4985 with SCA or a pre-charged conventional coolant meeting ASTM D6210 for those. But it's your call, and some owners use the ELC in their older engine successfully. For the 2/2/99-up builds I would highly recommend upgrading to HD ELC.

BTW, if you need to check the build date of your engine, you can find it on the valve-cover tag (driver's side), or stamped on a machined surface on the underside of the engine, behind the oil filter and just ahead of the bell-housing cover. You may need to wire brush/clean it to read it.
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Stewart