Lucas UCL vs. TCW3 rated 2 cycle oil

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*Using TCW3 in 4 cylinder engines at 640:1 was a bit too much for smaller engines, so I cut the ratio back 980:1 which was better ... Smoother , quieter idle , instant start up in any weather - little to no gain in gas mileage (too much at 640:1 it actually reduced gas mileage in 4 cylinder engines - 6 & 8 cylinder engines handles a 640:1 ratio much better) .
I don't see how the number of cylinders would make a difference. Maybe your results are because of something else like GDI?
 
I splurged on a bottle of the Lucas UCL this morning at WM (beware -- it's $10, though it is a big bottle) and have put 4 oz. into the ~12 gallons in my tank. We'll see what happens if anything.
That was in Dec. 2020. I've been putting ~4-6 oz. into my 18 gal. tank depending on how full it is from time to time. Recently I've had a bump in gas mileage, but that's been because of the E0 I've been running and the warmer weather. No reason I can see to buy it again when the bottle is empty.
 
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