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Quicksilver Premium vs Premium Plus!? Please help

Old 04-28-2020, 11:33 PM
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Default Quicksilver Premium vs Premium Plus!? Please help

have a 1998 Merc 225 3.0l EFI and when I bought it I was told the devious owner always used this:


I notice there is also Quicksilver premium plus synthetic. Iím wondering if I should I guess upgrade to that other oil? Whatís recommended?

thanks
Old 04-29-2020, 12:33 AM
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Either will meet the needs of your engine.
Is is the plus better, maybe.
Is is it advantageous, maybe.
It's more expensive so it has to be right?

A lot of people would just use Walmart supertech 2-stroke oil..... It almost half the price of that Quicksilver premium plus.


​​​​​​

Last edited by mbb; 04-29-2020 at 12:40 AM.
Old 04-29-2020, 07:48 AM
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The premium plus is a synthetic blend, not full synthetic. I think, from articles I've read, to be a synthetic blend it has to be a minimum of 10% synthetic versus mineral. Rest assured the oil companies are not going too far past the 10% for any brand. I don't see where it's worth the extra money to buy the blend. However I had a '03 225 EFI, and it liked oil almost as much as gas....almost....and I only used the Amsoil 100% synthetic for the last 12 years I had it!! Much cleaner, less smoke and worth the extra peace of mind. Good luck!
Old 04-29-2020, 08:35 AM
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Premium Plus is the most recommended as itís synthetic blend. I used it on my motor until recently switching to Pennzoil XLF, also a synthetic blend seems to smoke less. Mercury does not recommend the use of full synthetic in their motors due to an issue called glazing, but many people do it with no problems.
Old 04-29-2020, 08:37 AM
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Use the Premium Plus, it will be noticeably less smokey and leave less soot in your prop.

It doesnít matter if itís branded as Mercury or Quicksilver, just be sure it is the +
Old 04-29-2020, 09:29 PM
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Originally Posted by Tom W Clark View Post
Use the Premium Plus, it will be noticeably less smokey and leave less soot in your prop.

It doesnít matter if itís branded as Mercury or Quicksilver, just be sure it is the +
ok thank you!
Old 04-30-2020, 05:11 AM
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for that motor I would use either Walmart tcw3 or penzoil premium plus
Old 04-30-2020, 05:28 AM
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Here is what Mercury says about both of those oils:

Premium 2-Cycle Outboard Oil - from Merc website
Specifically formulated with a marine additive package to meet the needs of: Low-to mid-horsepower outboard engines, under general marine operating conditions
https://www.mercurymarine.com/en/us/...-outboard-oil/


Premium Plus 2-Cycle Outboard Oil
Specifically formulated with a higher concentration marine additive package to meet the needs of: High-horsepower outboard including direct fuel-injected engines in extreme marine operating conditions. - Far exceeds Mercury in-house test standards, which are more stringent than the industry's TC-W3 standard.
https://www.mercurymarine.com/en/us/...-outboard-oil/
Old 05-31-2020, 02:20 PM
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So I should not use Premium Plus in my "low powered" 20 HP Yamaha? I want to see if it smokes less than Yamalube (also semi synthetic)
Old 05-31-2020, 06:26 PM
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Originally Posted by NorthernerD View Post
So I should not use Premium Plus in my "low powered" 20 HP Yamaha? I want to see if it smokes less than Yamalube (also semi synthetic)
Yes.

Yamalube isnít really that good. Penzoil premium plus would be my suggestion , but the quicksilver pp would work also
Old 05-31-2020, 06:36 PM
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Originally Posted by jeffro22 View Post
Yes.

Yamalube isn’t really that good. Penzoil premium plus would be my suggestion , but the quicksilver pp would work also
Yes I should, or yes I cannot? I cannot find Pennzoil locally at all......So the Quicksilver Premium Plus Synthetic blend is ok to use in the smaller motors too? Why would the Premium Plus info indicate its for high horsepower engines? I have been using Yamalube semi synthetic for many years.
Thanks for your patience!

Last edited by NorthernerD; 05-31-2020 at 07:01 PM.
Old 06-02-2020, 07:03 AM
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the quicksilver PP is fine for your motor. Should do better than the yamalube. Could also maybe look into amsoil

FYI- the penzoil is normally available at walmart and advance auto
Old 06-02-2020, 07:23 AM
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Originally Posted by jeffro22 View Post
the quicksilver PP is fine for your motor. Should do better than the yamalube. Could also maybe look into amsoil

FYI- the penzoil is normally available at walmart and advance auto
Thanks for the info. I have read good things about both the Pennzoil and Amsoil but up here in Northern Ontario my choice seem limited. Walmart has no Pennzoil and Amazon Canada says it is unavailable. Perhaps a covid-19 thing? My only semi synthetic choices are Yamalube, Quicksilver, and Lucus. I picked up the Quicksilver and will give it a try.

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