okay I had to do a little research......our walmart has the quick silver premium plus 28$ black label....not the red label 19.97 premium....I am going tomorrow and look for the red/black label at the SUPER walmart..... they have everything.....i think you mean the red label is 19.97 not the premium "plus" but if you are correct I would buy them all! price mismark

Quicksilver brand is Mercury BTW. Comes in a silver jug. It is the Premium Plus. same stuff at Academy for $19.99

I have no good oil info


But how have you had the boat for a year amen not had to add oil? Come on man you need to get to fishing more. I'm burning a gallon a week lately and it's usually a lot cheaper to buy it in the 2.5 gallon jugs if you can find it.

dang your right! academy has the premium plus 19.99/gallon wth is up with walmart prices! ill be switching to quicksilver. just bought a case from academy..... if anyone cares, I work on vehicle engines a lot as a side business, lots of the cleaners screw up the sensors in our fancy motors, i used to be a seafoam advocate until i saw how it burned and the damage it caused, in order to clean the combustion process up most of these have lots of alcohol in them, while its a good solvent and does indeed clean it does not go so well for the sensors......YES I KNOW THE CAN SAYS SENSOR SAFE! but i have put it in a tank of fuel and watched temperatures soar on my laptop from seafoam trying to pinpoint why sensors were failing.... now i just run gas and oil nothing else......if yall want more info you can message me...... oh but i DO run 2 stroke oil in my duramax.......to lubricate injectors since obama is taking the sulphur out of our diesel fuel

Look at the part no. by category, same oil just different packaging and sometimes price.

$238 for 10 gallons shipping and tax included from academy........ thanks mark !

If you ever have to tear one down that has been running cheap oil and no quickleen and then tear one down that has been running good oil with quickleen or even cheap oil with quickleen you would retract that statement. The difference is in how clean they burn and the amount of carbon deposits they leave behind that are harmful to the engine.

The cheap oils carbon deposits are rock hard and very thick you almost need a chisel to get them off. The better oil the deposits will come off fairly easy in a parts washer using quickleen makes them not deposit and the soot washes off pretty easily.


By far the cleanest burning oil I have found has been amsoil I couldn't belive how clean my exhust was when I tore my lower unit down after running amsoil.

I don't sell oil so I don't care what you buy but that is my personal experience with the different oils.

i am an amsoil dealer and run it in all my vehicles, just too expensive to run in the outboard

Glad you got what you needed. Good fishing to you.

have you tore one down that someone has been using the synthetic blend pennzoil? just curious that's what i have been using..... whats are you calling cheap oil? any specific manufacturer?

For those that choose Mercury DFI Oil I buy it bulk(in their jugs) for $24 a gallon at Rockwall Marine. Dirt cheap for DFI.

Sea Foam has under 25 percent isopropyl alcohol in it according to their MSDS. A can at 16oz in a tank of 20 to 50 gallons means you are introducing something less than 4 oz of alcohol to either a tank. 128 ounces per gallon and that is less than .2 percent increase of alcohol in 20 gallons and under 1/10 of a percent increase in 50 gallons.
Most of the people who use these treatments have had zero sensor problems using it and I've heard many reports by of successful use of it over the years. In fact if you choose not to use it or any other treatment your carbon deposits in your engine will be noticeably worse. Sticking rings cause many engine failures and no treatment increases that risk. If a person chooses a different gas treatment like the Mercury Quickleen it uses a smaller dose per treatment and is just slightly more expensive than Sea Foam.


PS, ULSD came into use in 2004 and mandated in 2006 followed by all on the road diesels required to use ULSD starting in 2007. ULSD has a low lubricity index but its mandated to have lubricity additives put in it although there is nothing wrong with adding a little something to help it out.

Jay Smith, a noted high volume engine rebuilder and racing engine builder likes Pennzoil. He is retired but worked in the oil industry and did rebuilding as a side job for decades. He rebuilds several engines a week. He also says he hates Amsoil and any full synthetic in any steel sleeved engine although there seems to be many who use it with no problems.

I use Pennzoil Premium Plus but at that price Mercury Premium Plus is not too much more expensive. I've never read one test that indicated that Mercury oil does better so its really to me just run what you have confidence in. I don't use manufacturers recommended branded oil in any of my cars either.


I think Mercury Optimax oil is not TC-W3 certified. Their Opti oil is not TC-W3 oil certified as it does not meat their certifying requirement. Thats not to say its a bad oil. Its just not certified.

its 28 at my local Walmart as well. Thanks for the reminder that Walmart matches

I have a 1999 Merc 225 EFI.
I started out using Mercury oil. When they doubled the price on their oil I started using Pennzoil Plus. Would buy cases of it at BPS during their spring sale. Would come out at about $9.00 a gallon. I used Pennzoil for years until they went up on their price. Now I am back to Merc Premium Plus from academy. $19.99
I have always used quick-clean about every other tank. Had the motor in the shop last month to replace the impeller and the motor shows 1400+ hrs.

I use Amsoil.