well, heres the deal mate, i did a change today, but also used Wynns Engine Flush too, but not for very long, just a 5 minutes or so run with it in
oil came out fairly dark, so in went the Elf with new filter, drove it around, it felt good, was happy, not sure if it was due to the flush though or the Elf oil
thing is ive now added some Wynns Oil Super Charge, which is a concentrated additive, so ill have to see how it goes with that, but ive got a feelin i should have just left the Elf in on its own, in which case if im not happy with it ill probably change it again in a few weeks to just the Elf oil