I put zerex hd elc in it about 4 months ago and I just did an egr cooler delete and I'm low now and I can't find zerex anywhere now can I put rotella hd elc in it to top it off? One is bright red other is bright orange almost red
Yeah you can mix EC-1 rated coolants...same basic chemistry. Most ELCs can actually tolerate up to 15-20% non-ELC coolants so you should be just fine mixing a par of ELCs.
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