Mercuriser 4.3L Oil? Alpha one Gear lube?

Justaboatin

Seaman Apprentice
Joined
Jan 2, 2006
Messages
37
Hello,
I am buying stuff for my first winterization of my boat. I am wondering what type of 4 Stroke Oil to use? 10W30? Also what is the best lower unit gear lube? Is there a diffrence between the Mecury Premimum and the high performance gear lube? The boat is a 19Ft Sylvan bowrider with a Mercruiser 4.3l V6 with a Alpha 1 outdrive. And finally is there a diffrence in fogging sprays?

Thanks in advance
Scott H
 

stevieray

Lieutenant Junior Grade
Joined
Jul 18, 2006
Messages
1,135
Re: Mercuriser 4.3L Oil? Alpha one Gear lube?

Scott - check this old thread for oil advice. For gear lube, I have always used the Merc "green" stuff - I'm not sure how they designate it. I do not see any difference in fogging sprays - any brand should do fine.
 

stevieray

Lieutenant Junior Grade
Joined
Jul 18, 2006
Messages
1,135
Re: Mercuriser 4.3L Oil? Alpha one Gear lube?

99% sure the green stuff is HP.
 

kbetts

Petty Officer 2nd Class
Joined
May 4, 2006
Messages
102
Re: Mercuriser 4.3L Oil? Alpha one Gear lube?

I believe you are right stevieray. HP is what I also use on my gen2.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,100
Re: Mercuriser 4.3L Oil? Alpha one Gear lube?

Scott, Automotive 10W-30 oil is not rated for your sterndrive. Merc. recommends either straight weight SAE 30 or SAE 40, depending on temperature, or the Quicksilver 25W-40 oil(all temps). If you plan to use the motor in the cold weather of either spring or fall/winter, I think the 25W-40 oil by Quicksilver is the way to go. As for the gearcase lube, I use any "LU lube for mechanical shift motors", that I can find (Pennzoil, Lubrimatic are common)

Also use some marine grease (saltwater resistant) for the zerc grease fittings and prop shaft.
 

Justaboatin

Seaman Apprentice
Joined
Jan 2, 2006
Messages
37
Re: Mercuriser 4.3L Oil? Alpha one Gear lube?

Thanks for all the info guys!

It looks like I am going to go with 30W oil...

No plans to go out in the cold...

One other thing... I seen that Walmart has the quicksilver line of oils... Is this the same stuff found at marine stores?

Thanks again
Scott
 

stevieray

Lieutenant Junior Grade
Joined
Jul 18, 2006
Messages
1,135
Re: Mercuriser 4.3L Oil? Alpha one Gear lube?

Did you look at the old thread? There are 4 types up higher in the order of preference over the straight 30W - I would have the tendency to start at the top of the list instead of the bottom - but that's just me:D
 
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