I live in az where it reaches 116+ outside and will be 100° at midnight during the summer....
I've recently acquired a 85 3.0 and it sat for a bit, I have about 7 different types of oils in it including (dun dun dun, Diesel )just a tad mind you! To clean her up while we get everything in order and set correctly...
Mercury says ( 25w40 for all temp ranges or 40wt for anything above 50°)
Upon research, there's a disgusting amount of people who run 5w30,30, 1040, 0w40 and all sorts other crazy oils for many many many hrs or years and don't have any better knowledge/reason other then (I've never had a problem)
If I use context clues with mercury, it looks like I'm ok with any oil, they even say 20w50 (kinda) ok but its nooooooooowhere near as good as their own 25w40
Local boat shops say 40 for our waters is what they recommend, and even the local mercury shop laughs at the 25w40 the manual says...
my neighbor does a lot of work on boats and his son is a certified mercury mechanic and he said (20w50 or 40wt and be done with it)
which leaves me pondering the question of (what do I use)lol
anyone have a suggestion? im really leaning towards 2050 but I know how much stronger straight wt is....
I've recently acquired a 85 3.0 and it sat for a bit, I have about 7 different types of oils in it including (dun dun dun, Diesel )just a tad mind you! To clean her up while we get everything in order and set correctly...
Mercury says ( 25w40 for all temp ranges or 40wt for anything above 50°)
Upon research, there's a disgusting amount of people who run 5w30,30, 1040, 0w40 and all sorts other crazy oils for many many many hrs or years and don't have any better knowledge/reason other then (I've never had a problem)
If I use context clues with mercury, it looks like I'm ok with any oil, they even say 20w50 (kinda) ok but its nooooooooowhere near as good as their own 25w40
Local boat shops say 40 for our waters is what they recommend, and even the local mercury shop laughs at the 25w40 the manual says...
my neighbor does a lot of work on boats and his son is a certified mercury mechanic and he said (20w50 or 40wt and be done with it)
which leaves me pondering the question of (what do I use)lol
anyone have a suggestion? im really leaning towards 2050 but I know how much stronger straight wt is....