Better mileage with drain oil

[sag2]

I may be crazy, but I just ran my fifth tank of fuel with a gallon of drain oil added, and I think the mileage is better when adding the oil. I have not calculated it, just using the overhead that has always been within . 5 MPG. When I punched it up yesterday I was averaging 19. 2 for the first half of this tank, when I normally run 17-17. 5 MPG. It seems to me the last time I added a gallon, the mileage seemed better. I will try it again when I change the oil next time, and pay closer attention to it. Currently have 14k on the truck.

Anyone else running drain oil?

 

[RBender]

Why in the world would you add drain oil to your diesel fuel? Your just trolling, right?

 

[Jeremiah]

Originally posted by sag2

I may be crazy, but I just ran my fifth tank of fuel with a gallon of drain oil added, and I think the mileage is better when adding the oil. I have not calculated it, just using the overhead that has always been within . 5 MPG. When I punched it up yesterday I was averaging 19. 2 for the first half of this tank, when I normally run 17-17. 5 MPG. It seems to me the last time I added a gallon, the mileage seemed better. I will try it again when I change the oil next time, and pay closer attention to it. Currently have 14k on the truck.

Anyone else running drain oil?

You know, you're right! In fact, I figgered if a little oil is good more has to be better. So I switched to running 100 percent used oil instead of diesel fuel. You should have seen those idiots at the service station grinning as I poured the used oil in the fuel tank. I don't know what kinda mileage I will get because right now my truck is still at the service station. First time it ever decided not to run. I figger one of them dumb clucks back there musta done something to my truck when I wasn't watchin'.

 

[fkovalski]

sag2- I have read other posts regarding this topic and I must say that I am more than just a little skeptical of the practice. I will, hoever be intersted in your long term reports. Specifically on more/ less power and any increase in smoke output. This is the last thread I read on the topic: burning used moter oil

 

[sag2]

I don't notice any more smoke, but it does have a little different smell when it is idling. My first fuel filter change was at 10,000 miles, and other than being black the fuel pressure was still good.

 

[dmurdock]

Originally posted by RBender

Why in the world would you add drain oil to your diesel fuel? Your just trolling, right?

Actually this is quite common in larger engines... many have computer controlled systems which constantly add old motor oil to the fuel and replace it with new oil for super-extended drain intervals.

 

[sag2]

I don't worry about it because my drain oil is probably cleaner than the oil in 90% of the vehicles on the road. And besides, those filters are kind of expensive, so I'm sure they work good!

 

[Jeremiah]

Originally posted by sag2

I don't worry about it because my drain oil is probably cleaner than the oil in 90% of the vehicles on the road. And besides, those filters are kind of expensive, so I'm sure they work good!

There are interesting stories out there about biodiesel fuel. In theory, discarded grease from McDonalds will also work. However, I will put such stuff in my fuel (a) the day I see it in a pump; and (b) whenever the owner manual says it's OK.

 

[RBender]

According to Chevron, adding waste oil to diesel is not a good idea, plus in California, it's against the law.



Please check out the last question and answer on this link

 

[Jeremiah]

Originally posted by RBender

According to Chevron, adding waste oil to diesel is not a good idea, plus in California, it's against the law.



Please check out the last question and answer on this link

If Chevron says it's a bad idea, other fuel companies probably will say the same thing. That should put this thread to rest - for good.

 

[fkovalski]

Chevron (or any other oil company) might be taking this stance for profit reasons. Think about it: If they endorse the practice then think of all the potential fuel in circulation for power production that they would not recieve a dime for. Buy lubrication oil once, use it then burn in lieu of diesel (whatever the proportions. ) It is less $$ for them- of course they are going to say no to waste oil as fuel. I am still NOT going to add it to my tank just yet.

 

[RankRam]

We better keep this quiet or the tax man will be charging us road tax when buy our oil for an oil change.

 

[BHolm]

This is hillarious Here on TDR we have somebody adding waste oil to his truck and getting better milage. The guys on the Chevy site are adding huge 2 micron fuel filters and getting better milage



I personally do not find any merit in adding dirty oil to a closely monitored fuel system like those in these modern trucks. I might consider it in my old '92 Pete with a mechanically injected N14 Cummins, but not in this new truck with such extreme fuel pressures. I think you are asking for very expensive injector problems down the road.

 

[Vaughn MacKenzie]

I ran many gallons of oil through my 2001 Ram. When I removed my DD2 injectors to sell them they had very very little buildup/deposits on them after 55K miles. I used fuel additive too. They were a lot cleaner than the 7K mile stock injectors I put in the truck to sell it.



I followed a few rules though when I burned oil in my truck:



--Only did it during warm weather

--Only ran it when most of the tank would be burned on a long trip

--Always let the oil sit for a couple weeks before using it to let contaminants settle out, then not use the last quart out of the bottom

--Never add more than 1 gallon per tank full an no more than 1 tank in a row.

--I tried synthetic oil once, it doesn't burn nearly as well and could make blue smoke from a hot engine (proof of the much higher flash-point of syn oils)



Never had a bit of problems and the fuel filter still lasted 10K easily as indicated by post-filter fuel pressure gauge.



As for the 2003, haven't had the nerve to do it

Vaughn

 

[DBVZ]

Improved MPG kind of makes sense. You get better MPG with No. 2 than No. 1 because the BTU content is higher. I imagine the used oil further increases the BTU content. Still, illegal in California, and with the high pressure common rail fuel system --- I don't think I want to take that chance with my new truck.

 

[Pit Bull]

Originally posted by sag2



I may be crazy

Yep :-laf But it's your truck. Keep us posted on how it does down the road.

 

[mchelius]

WOW! What a great way to get rid of all that old oil. Gee and all i was doing is recycling it.

 

[Pit Bull]

Originally posted by mchelius



Gee and all i was doing is recycling it.

I think this beats recycling. Look forward to knowing the long term costs if any?

 

[sag2]

Many more people take the chance by Bombing their truck and never think anything about it!

 

[Jeremiah]

Originally posted by Pit Bull

I think this beats recycling. Look forward to knowing the long term costs if any?

Long term costs? Let's see, a ruined engine might be worth a few hundred dollars parted out. A new one will cost 5 grand. Counting down time, a rent truck and incidentals, you might get away with 6 or 7 thousand bucks. Divide that by the number of quarts of oil you added to the fuel and it gets kinda expensive.



Might be cheaper to stick to plain ol' No. 2.