I have been using Rotella ELC for quite some time now. It is avialable at Tractor Supply locally to me, and is fairly priced. Just be sure if it is the concentrate (which is what I buy) that you do 50/50 mix with distilled water.

 

Thanks but I can find both Rotella ELC and Zerex ELC locally but I was trying to find the Delo specifically since Gooch and many others seem to think its 'the best'. it does have the longest rated life among the name brands. Just seems hard to find. Amazon used to carry but its out of stock and no due in stock date.

 

So how long between changes of what-ever flavor of ELC you're running? Manufactures claim 300-600K miles, maybe with extender addition. I don't think I'll ever hit the miles.

So how long between changes?

 

Haven't changed mine yet. I believe it is supposed to be in there for the life of the engine on our trucks...unless it leaks out somehow or is contaminated with oil or fuel.

 

I don't know if I have ever heard of that one where you leave the stuff forever.

 

As Mike said, ELC is rated for a very long time. I have seen some brands claim 1,000,000 miles with extenders. Yes, that is one million...

I don't know about you, but that would most likely be the life of my engine unless it is contaminated somehow, again like Mike said.

 

Didn't say forever. I said the life of the engine. For most of us, that will be well under the 750,000 - 1,000,000 miles the stuff is rated for.

http://www.hartlandlubes.com/wp-cont...e_Extender.pdf

 

"So how long between changes of what-ever flavor of ELC you're running?"
__________________________________________________ ______________________
Just a note. Be sure that you get the "EC-1" rated ELC. They are two different anamals. They are both extended life coolants, however the "plain" ELC still requires the additives that standard coolants require, where the EC-1 does not. I don't recall if the EC-1 rating is a CAT standard or not but the jug should indicate something of that sort.
Also be sure to use the concentrate to insure the proper mix with the distilled water as there will be a fair amount left in the block after flushing. (So I am told at least)

 

I agree however, would you trust it that long? I don't know about the extenders. Any test results that show it works? I honestly don't know

 

For mere mortals like our 7.3s its the time limits not the miles. The Delo is rated for 8 years with the extender added at the 4 year point.

It does seem the Rotella is readily available and far better than the green stuff in the truck now so I guess I will drive out to Tractor Supply and pick up 4 bottles. The Delo seems to have become unubtainium which is odd for a Chevron product. Perhaps it is being reformulated or this formulation is being removed from the market.

 

Try this place. This is where I get mine. www.manta.com

 

I trust it that long, but only because the big rigs run it that long without problems. So I should be golden with the duty mine sees.

 

Isn't that the "Win a race on Sunday, sell a car on Monday" mentality? Are the big rigs designed to run whatever they do and is it different from what we are designed to do? IOW, can we take advantage of that or are we like the guy that buys a car because it has "race technology", which it may but may not be relevant to a street car?

 

Sorry but that is some sort of business marketing site, not coolant for sale.

 

Oh man I'm sorry about that. I must have clicked on the wrong paste link. I'll post the correct one.

Try this place
Thompson Industrial Supply
803-775-7723
their in Sumter SC.