Is there any difference between the two except price.
i just purchased 5 gl of the Merc HP + lube and shows up looking different from the past but same part number.
Looks and smells the same as Quicksilver 90W.
Am I paying more for just a name?.

Thats the good stuff and what I run, recommended by my drive guy

Quicksilver can be sold by non authorized resellers and etc. Mercruiser brand only by authorized marina’s and resellers.

Quicksilver offers everything (same part) that Mercruiser does, and more part #’s too.

Exactly the same with different label

$30.00 more for the Merc label. Now that is BS.
​​​I wonder who makes it? Grapevine says Lucas oil.

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Old label, same part number. I ordered this and got the black/white label without the + in description.

Probably Warren distribution or someone. Been discussed here a bunch. Anyway, only made for Merc.

The Quicksilver High Performance is $10 a quart at Walmart if that helps.

That's the old stuff. The new "latest and greatest" is 85w-90 from Mercury Racing.

Isn't that the old green oil?

...

Same Parent company is my understanding.

Nope Citgo ..does i talked with a chemist that works for them