was adding 2-stroke for about a year and half and then stopped because where I fuel went to a partial bio-diesel mix and the engine sound and smoothness continued even when I did not add 2-stroke to the fuel.
In standard #2 ULSD I would definitely add the 2-stroke, and I have never lost any bolts.

Mopar1973man
 

from what I have read off the other posts the claim was that the 2 stroke oil loosened bolts. So why was the one post making the distinction that he would never use marvel misery oil by mopar1973man? It didn't read like that was the reason😱

Loosening bolts is probably someone's truck falling apart ;-) sorry. . I used marvel mystery oil many years ago and it swelled the rubber in the seals and ruined dirt bike carb. I'm pretty sure the oil attacked the rubber. I'm not sure how newer seals and related items would react but I'm not ready to be the guinea pig. I do know 2stroke oil is designed to be run in modern gas outboard engines and is designed to lubricate and burn clean. I would think that would be more useful to overcome the poor quality some fuel stations provide. I have recently been using local American owned station and the guy gets good quality fuel so I just use some power service anti gel/cetane boost

Im with you on that. Bolts falling off your truck is a good indication that ya have to inspect the undercarriage, cross members, items bolted to the frame, as well as all accessories bolted to the engine, every once in a while. That is a proper inspection IMO. Especially for older trucks. 2 stroke oil has nothing to do with bolts falling off or coming loose, any more than a new paint job causes your engine to suddenly leak oil. Knowhatamean??? :pca1:

Marvel misery oil
 

ok... That sounds reasonable to me! I know for sure that different solvents react with certain types of seal compositions unfavorably. There was an old school backyard mech. Fix of putting a small amount of brake fluid in a leaky transmission to seal a leak, it would swell the seals and possibly stop the leak but the problem is it doesn't swell them uniformly and not just the one it beaded too so you probably just sealed the fate of the whole trans. Rather than just replacing the deal! So I will stay away from marvel for the foreseen future😃

Yeah, that "backyard mechanic's fix" you spesk of is quite common here in El Paso, TX. We probably have thee most fly-by-night used car lots here, per capita. And, all have Mexican names ie: Lencho's Autos, Mundos lote' de carros, Guerro's carros usados, and the list goes on. We have one stretch of road that is right about 3 miles long with "wall-to-wall" used car lots. Ive seen wrecked cars for sale on some of these lots. Its freakin rediculous!!! Ive even seen a mixed concoction of roofing tar mixed with gasoline or diesel to make the old cracked tires look almost new. The mix is wiped on the tires and fills the cracks and smooths the surface.:scare2: Its gotta be criminal..........:td: This sort of crap just chaps my hide.:dang:

Ok, Im done............

Brake fluid fix
 

AMEN BROTHER! I here you loud and clear on that! And Marty Robbins really never covered any of that did he:-/

LOL.....no he didnt, darn him!!! When I vacation in my RV, some folks will ask me where in Texas Im from. I usually say San Antonio, Dallas, Austin, Junction.......anywhere but El Paso. Im going to hell for sure......:nope:

Elpaso
 

I think your already doing that time!😜

Giddy up
 

Just added my first dose of 2 cycle penzoil to my 6.5L Turbo Diesel!!

Fuel lube
 

DITTO! We'll see what we'll see!
😜

We will see how many bolts I can get to rattle off my truck and end up in the driveway lol. 141,000 on the old girl. I put Penzoil Synthetic Blend Blue Stuff at approx 100:1 Ratio

Good job you didn't put more in! Your whole truck coulda unbolted itself and fallen apart just sitting there! :scare2:

Haha
 

I am a mechanic myself and it's common sense a little extra oil keeps a little extra lube in fuel system including pumps, also if you had a leaky injector it's not gonna strip that cylinder or other components of it's lube, it will only add ;-) also I know someone that has 520,000 miles on one with original everything including lift pump and this is all he puts in, other that a little k100 to burn any condensation if any at the bottom of the tank!!! Cheers!!

Magic bolts
 

Yes... And I'm scared to death- I removed my radiator cap yesterday and put it back on and they say if you do that the transmission will fail😱
🎓🐴 me!

Awesome Results
 

By adding synthetic blend Penzoil oil I have not only lubricated the fuel system nicely but also gained a little more than 1mpg!!!!!!

Whatever you do, DO NOT pull the cap off your power steering pump!! I did this morning to check the fluid, and later as I was driving home, the entire rear end and driveshaft passed me on the freeway. I got towed home...........:w2: :tttt: :tttt:

Well I read this entire post and I believe I've came to a reason of my mileage loss. I was getting 22-24 and yesterday I decided to add some PS with cetane boost to my tank. Today I could barely get 19mpg and that is the only thing that is different. I believe I'm gonna run it down and start back with some 2SO in the next tank. Sorry to kick a dead horse but it was worth the read so I had to comment.

Very interesting read indeed. Coming from a chemical engineer, here is my two cents worth...

I have read through Dieselplace's Lubricity additive study and results as well as comparing the results on the chart provided by 2004LB7. I am highly skeptic about many of the results of the HFRR scores found. I have no doubt that biodiesel and two stroke oil lubricate metal moving parts, but how they were placed by score seems a bit off to me. If you compare additive packages of available additives on the market, you will begin to see many common chemical components, petroleum naphtha being one of the most common. Naphtha is even a major component of two stroke oil. Something you don't see in many of the additives is the use of refined base oil. For example, Schaffer diesel treat 2000 placed higher than two stroke oil yet contains no lubricating oils other than naphtha. Further odd was Lucas upper cylinder lubricant which is literally colorless two stroke oil.

I agree with the use of two stroke oils used as a diesel oil additive to improve lubricity for pre-emissions based engines. Super Tech is manufactured by one of two different companies, Warren oil in the north and Specialty Oil in Texas. Main components is refined petroleum oil and naphtha along with other small additions of anti-smoke, ZDDP and blue dye. Zddp is a major concern as it will tend to plate onto moving parts in the injector assembly and cause fouling of a different kind. Zddp will also contaminate catalytic convertors.

Lucas upper cyl is nearly identical in formulation to two stroke oil, however containing 5-10% less oil favoring a higher quantity of petroleum naphtha. One thing here to note that while naphtha is used as a detergent/dispersant, it also elevates combustion chamber temperatures, thus helping to provide a cleaner burn. This is possibly the reason why mileage ratings increase with use. Lucas contains no Zddp, nor any additives proven harmful to emission equipment.

Stanadyne additives come highly recommended by many manufactures and have received high user ratings for their products. While I did not see any lubricants in their products, I thought their anti-gel component was quite genius. They use ethylene glycol to help prevent gel formation (common concentrated antifreeze). EG is very hydroscopic and will actually combine with residual water in the fuel, allowing it to be burned during combustion. EG also burns cleanly at elevated temperatures, a combined fuel source. If one bottle is used per tank of fuel, this equates to about 2 ounces of EG per tank, I would imagine that a very small amount would be required in the first place. While Stanadyne may not be the greatest lubricant, they offer a really great all around performing product.

Personally, I use Lucas. I use it less for lubricity and more for increased mileage. That and the fact that it is pretty inexpensive, possibly less than two stroke oil, keeps my wallet pretty happy. :rocking: