Alrigh guys, another dumb question...

[Max Besso]

I have a 95' 250 Sundancer with a 5.7/V8 Mercruiser and it is time for a oil change. What you guys use for your's and what you recommend ?
Thank you in advance !!

 

[D Bell]

25W/40 Quicksilver Synthetic Blend. Since we change it annually, didn't see the need for the full synthetic.

 

[BillK2632]

We are getting dangerously close to an oil thread!
Not a dumb question at all. There are lots of oils that will work just fine and the oil threads can get downright confusing. On my boats I just stick with the manufacture labeled oil -- it's a little more $$, but you are only changing the oil once a year usually. So.. I used the Quicksilver oil in all of my Mercruiser engines. It's easy to get and there is no guesswork on if you are using the right oil. Likewise, I use the Volvo Penta labeled oil in my VP 300 now for the same reasons.

 

[mrsrobinson]

Same for my prior gas engine boats.

 

[Bill Curtis]

We are getting dangerously close to an oil thread!

NOOOOOOOOOOOOOOOOOO

 

[mrsrobinson]

What wax do you guys used, which one is the best...

 

[Skybolt]

What was do you guys used, which one is the best...

Instigator! ...

We all know Shell rotella SAE40 is best for diesels and 15-40 for gasers ...

 

[Max Besso]

Seems like I open a can of warms???

 

[sbw1]

We always use what the owner manual recommends. Why would you do differently?

 

[Skybolt]

We always use what the owner manual recommends. Why would you do differently?

Because we obviously know more then any manufacturer could possibly know. Why else?

 

[Lazy Daze]

Seems like I open a can of warms???

Sort of

It's just that it's been talked about over and over again so it gets to be quite redundant for those that have been here a long time and it often morphs into a "he said, she said" kind of thing because there really is no "best" answer. Use the search bar if you want to read some more posts about that!

I can understand why you're asking - it's a fair question. It looks like you've been here for 4 years but only with a couple posts so I guess that's still "new"!

That said... I'm not going to post my answer to the question

 

[scoflaw]

There are better products out there with higher zinc content than Merc oil.

 

[Pirate Lady]

Instigator! ...

We all know Shell rotella SAE40 is best for diesels and 15-40 for gasers ...

But only if you buy 10 of the 5 gallon containers or 2 55 gallon drums.

 

[Pirate Lady]

Because we obviously know more then any manufacturer could possibly know. Why else?

My sticker on valve cover says straight 40w. we dont need need no multi synthy girly panty-waist metrosexual expensive labratory petri-dish born juice and thats what i use.
Adhere to what the engineers decided is best 40 years ago and youll be fine.
Hey, dinosaurs died to lubricate my engine.

 

[scoflaw]

Do you think oil technology has advanced since they put that label on your valve cover 40 years ago? 40 years ago a vehicle engine would never make it to 100,000 miles

 

[Pirate Lady]

Its all about tradition.

Sshhh, i use semi-synthetic 10-40. Just tween us.

 

[Skybolt]

My sticker on valve cover says straight 40w. we dont need need no multi synthy girly panty-waist metrosexual expensive labratory petri-dish born juice and thats what i use.
Adhere to what the engineers decided is best 40 years ago and youll be fine.
Hey, dinosaurs died to lubricate my engine.
View attachment 142401

Exactly what he said!

 

[highslice]

But only if you buy 10 of the 5 gallon containers or 2 55 gallon drums.

I buy it by the gallon.

 

[Scott215]

Why a high zinc content. Most motors are hydrolic roller so no need for zinc. IT HAS Started again

 

[Skybolt]

Do you think oil technology has advanced since they put that label on your valve cover 40 years ago? 40 years ago a vehicle engine would never make it to 100,000 miles

True, but I know with Detroit's you still need to follow the label.