Well I have a couple of questions;hope you people can help. I have the last 2 quarts of Evenrude TC-W II not TC-W III; I usually buy it by the case 6/Gals. Where could I find the best deal on this? (East of Cleveland) Also TC-W III is a synthetic blend ; would that be good too use in my older 1978 70 hp Johnson? Thanks in advance. PS Cranberry Creek Marina is offerring TC-W III- XD-50 for $14.95/Gal.;if you bring in your own empty jugs to refill.