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Author Topic:   Oil Brands
Ray posted 12-09-2000 11:24 AM ET (US)   Profile for Ray   Send Email to Ray  
I have always wondered what is the straight scoop on TCW-3 oils. I purchased an '85 Revenge 25' walkthrough with an '86 Johnson 225hp that was rebuilt a year ago by a very reputable place in Grand Rapids MI. The previous owner had been using Merc oil and I switched to Johnson oil. I am told by all the engine dealers to use only the Merc or OMC oils as they have more additives than off brands. Previous to this I have used only Citgo Extra Range TCW-3 oil for the past 10 years in my 6-cyl 90 HP Merc (1986) and it ran as good 12 years later under hard usage as it did when new. Would going back to the Citgo oil be advisable? It surely would save a bundle of $$$$$$$ but not at the cost of another rebuild of the powerhead.
bigz posted 12-09-2000 01:20 PM ET (US)     Profile for bigz    
Ray,

As I understand it from a very good source at one of the major oil companies,the basic blend of base oils and ashless detergent additives developed to meet or exceed the NMMA/BIA Designations TC-W3 is about the same for all oil manufactures. The primary goal with the 3rd generation of 2 stroke outboard oils is designed to reduce the growing problems of deposits which cause piston ring sticking and piston varnish, piston scuffing, bearing wear, exhaust port carbon deposits, plug fouling, pre-ignition, and rusting. Another goal with this specification is to formulate to protect all 2-cycle outboards from the adverse affects of common, low grade "pipeline" gasoline. The continued use of these low quality fuels can add to the build up of piston deposits which interfere with the free ring and piston movement in each cylinder, increasing ring wear and degradation which eventually may cause engine failure.

Added to this basic package individual outboard manufactures will work with the oil companies supplying their "branded" oil to add additional additives to control what their engineers deem important for their specific motors ---

The bottom line is that all major oil companies produce a TC-W3 product that basically should work fine in your motor ---

Keep in mind though the OMC, Mercury and Yamaha, just to name the majors, brand oils all have additional additive packages blended in --- now whether this is actually necessary or just a marketing ploy who knows for sure --- one thing is certain using a quality TC-W3 oil from any manufacture doesn't void your warranty --- humm maybe that says something ----

Tom

compounder posted 12-09-2000 08:22 PM ET (US)     Profile for compounder  Send Email to compounder     
Ray, you will get more folks telling you their favorite brand of oil than you can shake a stick at. If you frequent other boards you will see the brand flame wars. Everyone seems to want to tout their favorite brand as best, and I guess I may be doing the same.
I use a lot of two stroke oil---outboards,personal watercraft,lawn mowers,chain saws,string trimmers, etc.---and use the same oil in all of them: Klotz 100% Synthetic. Yeah, it is sort of expensive, about $20 gal when purchased in small quantity, but I buy the 30 gal drum and that brings the cost down to about $14/gal if you can pick it up from a dealer and avoid shipping. I think lots of folks pay that much for the outboard manufacturer's house brands and probably don't get the quality of a good 100% synthetic. The Klotz produces very little smoke and what there is smells pleasant. On the rare occasion I have torn down one of my two-stroke engines, it is also very obvious that deposits are minimal. In short, I'm not going to pretend to be a petrochemical engineer and debate all the technical aspects of two-stroke oil, but I have become convinced through actually using a lot of the product that it does everything you want your oil to do for your equipment and is certainly worth the price. Take a look at www.klotzlube.com. They have a dealer locating feature or you can mail order at www.reynoldsmarineracing.com.
If you use a local dealer, remember the prices are very negotiable. Good luck.
Coconut posted 12-18-2000 11:58 AM ET (US)     Profile for Coconut  Send Email to Coconut     
If you do decide to go with a major outboard manufacturer brand, try to find a local dealer that will sell you bulk oil. You can save some money by bringing in your own container and having them fill it from thier 50 gallan barrel.
Ray posted 12-19-2000 09:24 PM ET (US)     Profile for Ray  Send Email to Ray     
Thanks a bunch. This is exactly what I was looking for. This site is awsome. Have a Merry Christmas, Ray

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