Thanks guys, I am going to have to use the green stuff since I'm E99.

As for the concentrate, it looks like I'll be taking back the 50/50 for the concentrate and buying 4 gallons of distilled water.

What about the procedure? same as stated on the first page of this thread?

 

As others have said, after a backflush you wanna use the full strength concentrate, not the diluted 50/50 mix. However, since you have an E99, you shouldn't use a HD ELC. E99's should stick with the conventional green coolant.

Stewart

 

For back-flushing? Yes.

Stewart

 

perfect. thanks guys. back to napa tomorrow

 

I just found the Chevron Delo HD ELC, red, coolant at a local oil distributor supply house and had it flushed and installed. My procedure was after flushing with distilled water and draining I then filled using four gallons of concentrated coolant, then finished up with approx. four gallons of distilled water. After running around over the weekend, I had to top off again and did so with more concentrate. Test freeze point and it was at -34 deg. F, just like it's supposed to be.
This coolant is good for 750k miles and can be extended if you use a bottle of the extender.
I paid $21.99/gallon.

 

Did my coolant flush with the concentrate stuff. Do I need to use SCA additive? I thougnh since it was an e99 I didnt have to ...

 

Wait, you took the ELC back, right? You used the traditional "green" coolant, correct?

If yes, then unless you bought a coolant pre-charged with Supplemental Coolant Additive, you need to add the appropriate amount yourself.

It doesn't matter what year your truck is, unless the coolant is pre-charged with SCA's, it needs to be added. How else will your truck be protected from cavitation if the coolant doesn't have SCA's?

Stewart

 

Let's have some clarification:
*Can the Chevron Delo HD ELC be used in E99's?
*Can this same coolant be used in the trucks originally using the green coolant?
*If this Delo coolant is used it does not require any SCA additives, regardless of the
truck using it. Agree?

Just curious since after reading so many posts, I am getting confused.

Thanks,

 

It can be, but it shouldn't be since there are compatibility issues.

Yes, as long as it's not an E99 or earlier rig.

As stated clearly, many times, A heavy duty OAT Extended Life Coolant (ELC) protects from cavitation without the use of SCA's. Chevron Delo ELC is a heavy duty OAT ELC.

There might be a lot of info, but none of it is confusing. The thread is very clear and concise regarding which coolants use SCA's and which coolants don't, and which trucks can use OAT ELC's and which trucks shouldn't.

Stewart

 

Yup! That's a very straight-forward read! Gooch layed-it-out pretty well.

Pop

 

Thanks guys, just trying to gather the answers together for others that may be interested.
Great stuff.
If not for Gooch's read neither I nor my friends would have know about such good stuff. Numerous diesel guys at work are converting over.

Thanks again,

 

That's exactly what I've done, and this thread accomplishes.

I've compiled all the info into one thread for everyone to reference.

Stewart

 

I have an E99. I have been using an ELC since 2001 or 80,000mi. I have not had any issues except for replacing a water pump @ 285,000 mi.
Currently I am using Detroit Diesel Power CooL Plus Prediluted 50/50.
When I get to 610,000 mi om truck I will have to add their extender though.

 

thanks forthe info
Plan on doing this before it gets to cold

 

This is the stuff that I used.

The Concentrate

Napa coolant image by 1991corvette on Photobucket