Marvel Mystery Oil in crankcase

Here is a thread on oils you might find interesting.



http://www.classiccar.com/forums/showthread.php?t=7757&highlight=engine+oil

I tear the newspaper up every day and toss it on the front lawn to keep the tigers away. Haven't had a tiger on the front lawn since I've been here, so it works real good.

Really.. what's with the Plane?? I used to work on the USAF version of that Lockheed lady.. RC-121-D as I recall.. I don't recognize the paint scheme..Is that the Navy version?

Davew Fl

I forgot to mention, I haven't had any elephants on the lawn either, so it must work for those too. Seriously though , it really gets back to the fact that if any product was as good as it is made out to be, the manufacturers would either recommend it in their products, or use it from the start. I don't have any experience with the said additive, as we can't get it here, but there used to be a product called Redex available here, whcih was promoted as an upper cylinder lubricant. It quietly died from the scene. Currently, the additive that has been promoted is Valvemaster, which is supposed to protect your valves from the dreaded unleaded petrol. I have just stripped my Essex motor down, first time for 22 years, as it was starting to rattle a little. there were two connecting rods starting to peg out, which I replaced. There was very little carbon in the cylinders or on the valves and stems. The exhaust valves just needed a very small amount of lapping in to be perfect, and I replaced the rings and the two rods. I need not have done the rings, but since I had the motor apart thought I may as well. This engine has been run exclusively on unleaded fuel, with absolutely no additives, and using 20W-50 oil, for 22 years, (around 80,000 miles). I think that this demonstrates that our Hudson-built engines will perform perfectly well on unleaded fuel, without additives of any type. The use of "upper cylinder lubricant" is unnecessary in my opinion. I fail to see how any additive can lubricate the valve stems effectively, as sit would have to remain unburnt during the combustion to effectivel be deposited ont he hot exhaust valve stem and face. Lead was promoted as a valve lubricant, but in my experience this caused as many problems as it solved, as the lead would build up on the stems and faces, causing the valve to jam in the guide, and the build up of lead on the face would increae the tappet clearance. Okay, I know some people are going to swear by this stuff, and it probably doesn't do any damage, but I remain to be convinced of the effectiveness of any "Miracle" product. Remember the old Water injectors, which were supposed to increae valve life, stop pinking, stop burning valves, prevent carbon formation,give huge increases in fuel economy, etc. etc. Well, I had on of those on my car for 10 years, way back in the sixties, and the only thing I could ascertain was that it did actually use water. There was no other discernible benefit. I took it off when it siphoned half a gallon of water into the inlet manifold overnight when the diaphragm developed a leak. There was again, no detectable difference when the car was running without it. I rest my case. Incidentally, if my old faithful Essex goes as far between overhauls as it did last time, I'll be 92 before I need to touch it again.

Geoff.

Oh yah, love me some connies or 121's as this seems to be. Stripped one

20 some years ago ,and now have one for a neighbor. Flew in a couple

years ago. Missed approach to a grass field with no flaps(exhausted their

supply of hydraulic fluid) still greased it with probably no more than 10*

flaps second time around. Whats the story on this one?

An intersting note about those radial engines. They used three power recovery turbines (PRT's)in the exhaust stacks that had fluid coupelings back to the crank shaft. Sort of like a turbo charger, but without the blower. They would glow red hot.I don't recall how much power they supposedly "recovered" from the exhaust. I wonder if that would work on a 308?

It is worth noting that Marvel Mystery Oil is not a new product...it's been around for over 80 years. After many, many years as an independent business, it is now owned by the company that makes Turtle Wax. The product is very well respected in the industry.



http://www.marvelmysteryoil.com/main.taf?p=1



Geoff, I haven't had a Tiger in my tank (or on my lawn) since Esso became Exxon, but I do use MMO in my '40 H. If it does nothing else, it lowers the evaporation point of modern gas to help prevent vapor lock. Even if it dosen't do everything it says it will, adding it makes me feel better, which is worth the price of the product.



Oh, and Geoff...the Spitfire airplane used water injection...I guess those RR engines needed all the help they could get...:cool:

Thanks for a memory - I flew out of NAS Jax (Jacksonville to you uninitiated) back around '57, '58 as a flight crewman in the Connie doing hurricane flights. We came back from one flight with the skin on both wings wrinkled and so many missing rivets I wondered how the thing stayed glued together.

I walked into the Ops Office and immediately requested transfer back to my home unit there in Jax - VF-171. We had F2H-3 and 4 Banjo's (Banshees) in 171 - and they were single crew planes. Much better, thank you. LOL