im a deal buyer, AA has castrol on sale this month, but not edge, and i hate to switch brands, syntech is on a good deal, but not edge, ive never used syntech. ive read posts saying syntech isnt "really a synthetic". I use M1 in my trk and other car and i like it. But edge has been "heavenly" lol in my other car, so im wanting syntech opinions????
Note my last edge oci was 7,900 miles, no consumption
Note my last edge oci was 7,900 miles, no consumption
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