Engine Coolant

[Jerry Emert]

When I had my engine coolant converted to ELC they put Rotella ELC in the engine.  I think I have a small leak some where because I have to put coolant in every month or so.  I have been using Rotella but it is a little hard to find.  I do find it in some Walmarts.  Now my question, "can I put any red ELC in the engine"?  My engine temps are solid at 188-192.  Thanks
Jerry

[Steve Huber Co-Admin]

Jerry,
As long as the ELC meets CAT EC-1 spec you should be OK. Zerex and Delco ELCs meet it.
Steve

[Edward Buker]

Jerry,

Many of the coolants say they are compatible but it is hard to know for sure. Meeting the Cat spec, like Steve mentioned is a requirement, but I might also see if the chemical ingredients in the ones you want to mix are the same for the additive package. If you took a photo of the Rotella make up and selected the other brands that are using that similar chemistry package, that would be best.

Later Ed