I'm a bit confused and judging by the number of coolant questions popping up I feel like I might not be alone. I just ordered my EGR delete and a straight pipe exhaust. I am going to need to obviously drain oil and coolant to do the job. I currently have the Gold stuff in there and my Deltas are roughly 4-6 running 65 MPH. I have just over 47k miles. I have read alot of posts showing concern for clogging their oil cooler once they switch to ELC. I'm not ready to repalce the oil cooler yet and why should I if it's functioning perfectly at the moment. My question is do I just refill with Gold after completing all the work? If not, tell me why if it seems like flushing and switching to ELC will almost assuredly clog my oil cooler?