Oils

[REDFORD]

After reading the posts on carbon buildup on piston rings using reg oil vs syn. oil I was wondering if the two would mix if I changed from one to the other. I am now using quicksilver and the oil inj. is unhooked so it is mixed in the tank. The syn. sounds like a safer deal but would hate to ruin an engine switching over.emoScratch

 

[jbh3]

You might consider regularly adding a de-carbing agent to your gas. Merc makes one called Quicklean that your Merc dealer should stock. Seafoam is another that gets good reviews and is available at parts stores and even Walmart. You can, most likely, safely switch to a full synthetic oil. I would consult a trusted Merc mechanic for a recommendation. I run Amsoil synthetic in my DFI Merc. Good luck!

 

[hl&s]

I've been curious about switching to syn also. I found this on the Mercury Website.

"OPTIMAX/DFI 2-CYCLE OUTBOARD OIL
A synthetic blend 2-Cycle engine oil specifically formulated and developed to meet the needs of:

OptiMax and Direct Fuel Injected (DFI) 2-cycle outboard engines.
Provides the maximum protection for Optimax and DFI engines even under the most extreme operating conditions.
Outperforms other oils by combining a carefully modified base stock blend with a synthetic additive package.
Minimizes carbon build-up to help maintain engine top end speed and acceleration.
Superior lubrication for increased resistance to piston scuffing.
Will mix with typical 2-cycle engine oils.
Provides warranty protection for Mercury and Mariner Optimax and DFI outboards.
Available container sizes: Pint, Quart, Gallon, 2.5 Gallon, 55 Gallon"

It does state syn oil can be mixed with regular oil but also specifies this oil is formulated for DFI and Optimax. emoScratch

I've pre-mixed a 2 gallon container with amsoil saber and when my main tank runs out I'll pour it in and head for the dock.

I've been using quicksilver with quickleen fuel treatment to control carbon build up on my 89 Johnson 88. 1 oz of quickleen treats 6 gallons, but it's an added expense that's not necessary with syn oil.

 

[flymaker]

I'm not knocking syn. oils (there's a joke there somewhere) but I've been using wal-mart brand 2 cycle oil since 1993 in my Yamaha 150 and it's doing fine. (knock on wood) Once or twice a year I use a combustion chamber cleaner to clean the carbon from the pistons and it runs as good as the day I got it. I'm retired and on a budget and syn oil is expensive. After 14 years of running wal-mart oil, Ill stick with it.

 

[Liveliner]

While on the oil subject.  I have been running Quicksilver Premium Plus in my 150 merc carb engine.  I am afraid to change oils in fear of creating an engine problem.  My warranty just ran out and now I am on my own.  Can someone who runs a Mercery outboard tell me if i can change to a cheaper oil like the regular quicksilver.</p>

But in the meantime where is the best(Cheapest) place to buy Quicksilver Plus outboard engine oil?  I am down to my last gallon.  I have been paying about $50.00 for 2.5 gal. at Boaters World</p>

 

[jbh3]

See if your Merc dealer sells Prem Plus in bulk - most do. You should be able to save several $$'s per gallon buying in bulk. My dealer sells Amsoil synthetic for $21 per gal. I think Prem Plus is ~$18 per gal. I use a 2.5 gal plastic gas can from Walmart. Running a cheap oil that is out of spec for your motor will only save pennies in the short term and could cost you major dollars down the road. NOT a good idea IMO.

 

[jon the fisherman]

LL, do not go to cheaper oil. you can switch to a synthetic, but make sure you have an empty tank to start with. I run Klots in my 1996 merc 200 and my 1985 merc 90, and both still run great. Klots mixes 2 oz per gallon of gas which is less than 50:1. It is a little pricey, but well worth it to keep the outboards running. I took the carbs off my 90 hp and they were clean as a whistle, no varnish or gunk. The synthetics do not build up carbon as much and are great for older motors, which keeps the compression from rising.

 

[beetlespin]

My advice would be to stick with premium plus. Klotz is not the oil for you. Its good oil but its not right for your application unless you are turning 7000 rpms. If you feel the need to go to synthetic go to amsoil. I would recommend the hp injector oil but make sure its ok for premix first. The premium plus is your best bet.

 

[Liveliner]

Ouch!  I just returned from Boaters World with 2.5 Gallons of Quicksilver Prem. Plus  $57.99 plus tax

 

[Liveliner]

 

[jon the fisherman]

Beetlespin knows more than my merc mechanic....maybe he can teach Glenn Reynolds about boat motors

 

[beetlespin]

JTF,

I do not know more than your merc mechanic. I have used Klotz before. It is good oil. But unless you have a pretty severe application it is probably not doing anything special for your engine. For most people Quicksilver oil is fine.

 

[xroadsbasser]

Liveliner, I get my p+ at Nichols and I think I paid $17 a gallon + tax. I might be wrong it has been a few months but you can call them and see!

 

[hl&s]

Quicksilver Prem Plus is on sale at BPS if you get near one. Bought some last night for $14.58 a gallon. I think everone in the store had 2 or 3 gallons of it in their buggy. Popular stuff !

 

[Liveliner]

"Day late and a dollar short".  I was going to call BPS prior to going to Boater's World.

 But I didn't.</p>

I could have saved 10 bucks a gallon.  I would have much rather put fuel money and time in driving to BPS than paying 25 bucks per gallon.</p>

 

[Liveliner]

REDFORD - 7/12/2007 3:40 PM After reading the posts on carbon buildup on piston rings using reg oil vs syn. oil I was wondering if the two would mix if I changed from one to the other. I am now using quicksilver and the oil inj. is unhooked so it is mixed in the tank. The syn. sounds like a safer deal but would hate to ruin an engine switching over.emoScratch

</p>

I apologize for Pirating your thread with my need for oil.</p>

 

[MadBomber]

My engine manual (Evinrude 150) says to use TC-W3 oil.  It also says to use premium grade gas. But, it also says if you choose to run regular gas, make sure you use TC-W3.  Walmart has a good, cheap, TC-W3 oil.  The only oil-related problem I've ever had was letting it run out!!!   Ouch!!! $$$$$.  I had an alarm failure.</p>

My engine has never seen 6000 RPM.  I suppose you guys who run your engines at 7K+ should do all you can to protect your engine.  I doubt though that when those engines blow, it had anything to do with oil.</p>

 

[flip1up]

I used $7.00 a gallon Wal Mart oil in my 200XP for nearly 10 years. Never a problem at all.

 

[BASSMASTRBW96]

i use penzoil synthetic stay away from the blends cause they are nothing but trouble but you can buy the penzoil full synthic at wal mart 12.00 a gallon i run it in my 225 supermag and i have no problems and im twistin about 7000 rpms allison xb2002 225 supermag