Re: Simple test for oil quality on bushing engines

[equad99]

one time i was looking at the oil charts out of my johnson manual, (3rd edition), and noticed that it calls out 40 weight for the hd,td,sd and others. i have these motors,and had been running tcw3 in them. i tried 40 weight, and it made a very noticeable difference in their running qualities in a positive way, especially the sd-20. they really like the 40 wt at 16-1…..i had thought that they were new enough to run best on tcw-3. not so much i found out. this and an a-50 that ran like a turd on tcw-3 leaned me towards using 40 weight if its called for….art b