When oil consumption stabilizes.

Ken

Use the AMSOIL 15w50 Dominator Racing Oil.

It's a good premium synthetic oil and for folks who race it's the one.


Everyone else ought know that M-1 SilverCap with 1400 ppm Zinc is right up there as well.

Wally Land sell it in gallons too and a Purolator or M-1 oil filter should get you on the lake in style. Probably 30-40 hr change is fine.

What's your defenition of race? Would the Amsoil race oil have to be changed out any quicker than conventional oil?

I just ordered a case of the Amsoil 20-50 Syn HiPerf Motor Oil last week. What's the difference in that from the 20-50 Racing Oil... additives?

That is a good question. "Race" oils are reportedly formulated with no detergents, corrosion inhibitors, etc. etc. that are in oils used in extended service/storage because the 'race' oils are supposed to be changed after each 'race' so those types of additives are not needed. Is that the case with the Amsoil 20W50 Series 2000 racing oil and now its replacement, the 15W50 Doninator oil?

All I know, is that my oil analysis showed the oil was still fine after 52 hours of service (one season). I used the AMSOIL Series 2000 Racing Oil. I still have some of that left over, and will be using it again this season, and then will go to the Dominator 15w-50 Racing Oil.

Some oils labeled for "Racing" do not have detergents which cut down on engine knock. They are for one race and out.

I do not have tests of the oil in question to see if it a detergent oil..

Virgin oil analysis attached.

Calcium and Mg are detergents...looks like a good "everyday oil" too.

Thanks, that is good to hear since i have run two seasons on it.

Yes But the point is the series 2000 20w-50 is no longer available, so all that info is for naught. I haven't bought my oil for this season yet and would love to know the make up of this 15w-50 Dominator, but can't get a straight answer from amsoil, I don't mind changing more frequently, just not every weekend. Amsoil does still sell the "Standard 20w-50" but its designation is not "series2000 Racing oil". It figures that when you get something that is relatively reliable they go and change things around!!!!.................................robertj r

All you need to do is send a small sample of virgin 15w-50 Dominator and ~$25 to an oil test lab (one is http://www.blackstone-labs.com/free_test_kit.html) for an oil analysis. If you post the results here you will get additional comment from the various OSO people with expertise in oils. Just a thought.

Not knowing a thing about this particular oil, 15w50 Dominator, let me go out on limb and say it will work fine for your typical drain interval of 25 hours and when it is analysed at the end of 25 hours, the add pack will still be good.

Ken

i shot an email off to Amsoil about the new series oil, but it must have gone into a black hole, havn't heard back from them...............

Speak of the devil. They just got back to me. This is the response i got. "Ryan,



Most racing engine oils including our own do have reduced amounts of additives. Racing Dominator lubricants are not designed to be used for any long period of time, which is the reason for having reduced detergents, etc. The RD series lubricants should work great in your marine application, but as with any racing recommendation, the only way to truly know what is happening inside your engine would be Oil Analysis. If you have any other questions please feel free to email us further."

Seems like a pretty vague response. First they say no prolonged use, then it's good for the marine environment. So not sure of the duration of using this oil between changes. Anyone have anything i should ask them?

Ryan

I think what they are saying is that it is not designed for LONG PERIOD OF TIME but depending on how hard and how much you run it , by using incremental oil analysis's you can determine the appropriate change interval for your/each boat individually.

Bill, you are a quick study.

Ken

I ran an entire season of the AMSOIL series 2000 20w-50, 52 hours. I did an oil analysis after the season, and the oil was actually still good to use, however, I did change it anyways, I just like changing everything once a season. I have twin 496ho's, with Bravo X drives. Everything ran great!

The new 15w-50 Dominator, has replaced and been upgraded from the "Series 2000 Racing Oil". Things change over time, and it looks like AMSOIL is up on their information and technology.

I did oil analysis after the season was over on two occasions with the Amsoil Series 2000 20W50 racing oil and the additive package was still good. The hours were not quite as many as yours. I change at the end of the season regardless as well.

Thats good. I mainly just do the analysis to see if anything else is going on. Maybe gasket leaks, fuel detection, things like that. The AMSOIL oil is so strong I don't even worry about it, except for the level in my crankcases. Now if I was running 100+ hours a season, I might do more analysis, but I still believe that oil would still be perfectly fine.

Is there anything in an oil designed for long term servicabilty that may not be in a racing oil that a typical oil analysis may not check for? Corrosion inhibitors for example?

These days with very low zddp in automobile oils there is a need to label oils with high zddp in a way to set them apart.

they may be labeled "racing" or "Motorcycle V-twin" or even "offroad".

In a good balanced high performance oil you want a decnent load of moly; lots of zinc and phosphorous; calcium; some mg; boron corrosion inhibitors..etc

A true racing oil like redline racing does not have detergency...one race and out...

Well that being said, and knowing that even the Amsoil racing has reduced additives, would it be advised to go with a conventional oil such as the 15w-50 Mobil vs the new dominator amsoil racing. I don't know about you guys, but i don't want to run the amsoil 30 hours, send it in for eval, and find out it was worn out when i changed it......

History has shown you can't go wrong with Mobil V-Twin 20w50, buy it, use it, change it.

Ken

Anecdotal evidence: I have done oil analysis every year for four seasons with engine hours from 90 to 36 with Merc 25W40, MI VTwin & Amsoil Series 2000 20W50 racing. There has always been plenty of reserve additive package that I could have run longer. Now running M1 15W50 Gold Cap and will see the same result.

I am guessing you will see more than enough. I wouldn't worry.

Ken

I thought i remember reading in this thread, that it was advised to run the silver cap vs. the gold cap.............

Either is fine...the GoldCap has a higher TBN for longer extended use in cars.

SilverCap is fine if you change out every 20-40 hrs..

For anyone who is interested, WalMart has a nice end cap sale right now on Mobil 1 15W-50 Silver Cap for $5.20 a qt in the big bottles. Just picked up three, so two changes worth. Seemed like a good price.

Still looking for the perfect oil filter. Using the Wix 51069R at 4.33" tall just fits my limited space between the filter mount and the exhaust manifold. The tall ones like a M1-302 won't fit and the short ones like the M1-111 seem to last only a few weeks until the oil pressure starts jumping around at lower speeds. Any suggestions from others who have this space problem? Are these "Racing Only" Wix filters good for a 100hour per season of mild use stock 502 Mag boating?

Thanks

Found some VTwin for $9.49 a qt! Yikes. passed.

I am going to try the Amsoil Ea025 filters this year for the first time. They are 4.25 overall length and use a 100% synthetic filtering media. They claim to filter and flow better than the stock Merc. cellulose Filters. I have stock 502 Mags, So I know what you mean about the limited space for a tall oil filter.

Your find on 15w50 is every day price so not a sale. Your V twin price is a rip off. I bought it for the 600s at 42 bucks for a 6 pack, but I bought 48 quarts at a time.

The VTwin at the same store was $7.49 a qt last year. Too much at $9.49 tho, esp with the Silver cap so cheap.

There is even a shorter AMSOIL Filter that will work too. It is an EAO-59. There is also a longer filter, an EAO-24. So if anyone is short on room or has extra, they have something that will fit.

Good to know, have you got any feed back on these filters and there performance?

I use them on my boat. I have twin 496hos and run the EAO 24 with the AMSOIL Series 2000 20w-50 racing oil. They are, as far as I know, contain the best filtering media on the market. They are 98.7% efficient with particles as low as 15 microns, and 50% efficient at 7 microns. The media is reinforced from the inside with a stainless steel mesh, to keep them from collapsing, along being able to hold a lot more contaminants. I ran a whole season on them, 52-53 hours. You are in Ray Twp, just send me an email, I'm in Romeo, I can get you more information.

www.amsoil.com/lit/databulletins/g2192.pdf

The oil you are using is very stout with a lot of Zinc...excellent choice!

The EaO oil filters are among the best out there..another excellent choice.

I have had nothing but great results with all the Amsoil products I have used.

They make a great fuel stabilizer as well.

This oil is also outstanding...and a bit less costly too..
http://www.amsoil.com/storefront/aro.aspx

That's what it goes for and it's worth every penney too as you will see if you do oil analysis.

The Amsoil 20W-50 is amazing as well and less costly.

$8/qt in a keg....find a couple buddies and have a kegger..


http://www.amsoil.com/catalog.aspx?GroupID=173