motorups

This is a bit of a repost I added to a reply someone posted on saving gas but I am interested to know whom has done such a thing and for that matter if it works. Plus some info on what would be involved. My car is new so it is not sometime I would be doing anytime soon since I want to ensure the warranty would still valid for the 3 years.

thanks for any input

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A guy at a local mazda thing they had recently in florida talked about using some sort of direct inject two stroke ? oil to feed oil when needed to the engine (instead of having it use the regular engine oil). He indicated that solves the carbon deposit issues thus maybe one would not need to red line unless they wanted to. I really don't know anything about what he did nor if what he said is true/fact but it was an interesting idea i would think. If indeed it works and was not expensive to do it would be a cool idea. Think he used his windshield tank fuild holder to store the oil in. Sorry, guess a bit off topic.

DMRH

Am using the Mazda rotary oil plus some two-stroke oil every few tanks. Its a good thing. Mazda know the two-stroke is the best for the engine but adding a seperate tank makes the engine unpractical to the average user, hence the engine oil metering pump.

If memory serves me, Susuki used a seperate two-stroke oil tank for their RE-5 motor bike from the 70's

As for my 03-model. Inspected plugs recently. Burning beautifully.

REgards

DarkBrew

You're talking about a Sohn adaptor.
https://www.rx8club.com/showthread.p...highlight=Sohn

Silver_Surfer

Wooo, I would advise against it for a daily driver. If that oil tank was to ever run dry your engine would be dust! Why not leaving things alone and just add some 2 stroke oil.

Jax_RX8

How often do you check your oil? manual says to check every few tanks - say 500-750 miles to assure to do not let the sump oil level get too low.

With my Sohn adapter, my tank has a 2 quart capacity and I use a quart about every 3000 miles - so I have a range of about around 6000 miles if I chose to go that far without needing to fill the tank - and my sump oil level stays full all the time for better lubrication and cooling.

Looks like the odds of you not checking your oil often enough are far greater than mine - plus I get all the benefits of using cleaner burning 2-cycle oil and a full sump all the time.

Jax_RX8

I have had mine for 1 1/2 years and it works great - read the thread referenced above for many details.

I must note though since you mentioned it - this will void your warranty if the dealer sees it (you could take it off and restore the original configuration if you had too though). Nothing about this mod has to be permanent.

But I must say, I would rather have the superior lubrication and less internal deposits than the warranty as I think it will make your engine have a much, much less chance of having any issues over the long haul.

4me2

how much work is it to put in premix per tank? come on really.............

Jax_RX8

That is not the point of the Sohn Adapter - you can and should premix whether you have it or not because the computer will not allow enough oil flow in general, independent of oil source.

The real advantage of adding the Sohn Adapter, is that you are not burning 4-cycle oil at all!

4-cycle oil, while it lubricates well, does not burn well and leaves a lot of deposits behind clogging up all your rotor seals, exhaust ports, etc that can cause compression and exhaust flow issues over time.

This does not change if you premix with 2-cycle as you are still putting 4-cycle oil in the combustion chamber as well and there are only enough cleaners within the 2-cycle oil to account for it, not the additional 4 stroke oil.

That is why I do recommend FP Plus alot as well - especially for the someone that do not have the adapter as it is even more beneficial to them to clean up the 4-cycle oil deposits.

My 2 cents.

4me2

Honest, my 8 doesn't burn engine oil. So I add premix just for peace of mind.
Sometimes I don't add premix, sometimes I do.

Jax_RX8

I see you live in the "Frozen Tundra" and probably do a lot of short to medium trips in your 8.

It is very common for oil levels to appear not to drop with oil usage because moisture/water levels rise in the oil over time as well giving the perception that none is being used.

Then, when you take a long trip that has the oil good and hot for a while, you use 1-1.5 quarts real fast - this is really due to burning off all of the moisture, not actual oil use.

Because this is very common in short trip cars, especially with 8 owners (why do you think so many get that milky goup on there dipsitck and oil cap - this is caused from condensation), that it is really hard to measure your oil usage accurately unless you have a separate tank.

Long story short, I am sure you are injecting more oil than you think, it is just being replaced mostly with moisture in your oil and you are not getting a good reading.

StealthTL

iTrader: (1)

Mr. Hill - share with us!

Who is the maker of this super-duper 2-stroke oil ?
Are you using the ESSO full PAO 0w30?

I love a good oil discussion!

S

4me2

I have two teenage girls, so I do a million short trips.
I get my oil changed at the dealer, and they haven't said anything about water in the oil.
I do check regular, and it is the same during the summer.
But for me, low mile useage and all. Premix in the tank works great.
thanks for the info.
later

Silver_Surfer

Same here! And it aint cold here either. Run about 28 miles a day. 13 miles one way from home to work(not city). I know its not a long trip, but its not that short either. Use what ever floats your boat, but I still have a nasty taste from my mouth from my old enduro two stroke days(oil injection days). I could understand a full premix, but not the oil injection stuff. Just my 2cents

turborx8

iTrader: (1)

My omp adapter barely burns any oil (couple ounces every 3,000miles) and I am so glad I did the mod because now I premix to keep my seals happy.

Jax_RX8

If it's not flowing oil its likely not the adapter, MazdaManiac had the exact same problem and just replaced his OMP (and put on an adapter) and his oil usage is back to a more normal oil injection rate.

Razz1

2 stroke oil will carbon up the seals unless it's synthetic.

SpIcEz

Charles, do you run your RX8 in winter, and if so, do you use the 0W-30 Mobil 1 in winter also ?

Im from Montreal, and you probably know it gets very cold up here.
Im just wondering what my options are for oils in winter.

Thanks

SpIcEz

Thanks allot for the input. Much appreciated.

When I get a chance I'll have to drive down to Detroit and pay you a visit.
Maybe even buy some product