tbourner Posted December 28, 2011 Share Posted December 28, 2011 Anyone heard of putting 2 stroke oil into a diesel fuel tank? 200:1 ratio (the same as a 2 stroke engine?). Supposedly makes it run a lot smoother and start easier in cold weather. Quote Link to comment Share on other sites More sharing options...
little num Posted December 28, 2011 Share Posted December 28, 2011 (edited) not heard that tbh but 200-1 would make no diffrence at all, a mate of mine use's kero in his jeep to stop the diesel from waxing and mix it 50 - 50 as its alot cheaper then normal fuel, as its mixed with road diesel you cant tell when being dipped so no worries of getting a fine. so he tells me. Edited December 28, 2011 by little num (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 28, 2011 Share Posted December 28, 2011 Maybe in a knackered old tractor, not in anything modern. Quote Link to comment Share on other sites More sharing options...
tbourner Posted December 29, 2011 Author Share Posted December 29, 2011 I'm told to only use semi-synth or mineral low ash 2 stroke, not fully synth as that is what wrecks modern pumps and filters. What reason wouldn't you put it in anything modern? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted December 29, 2011 Share Posted December 29, 2011 Because modern diesels are complicated beasts, not like the old Bosch pump jobs you got in a Pug 306. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 29, 2011 Share Posted December 29, 2011 I would have to ask why on earth you would want to add anything to the diesel? It has all the additives needed for good pump life and good all weather performance and low waxing. I certainly wouldn't add it to any modern diesel engine of mine, not that I have one. Quote Link to comment Share on other sites More sharing options...
Wez Posted December 29, 2011 Share Posted December 29, 2011 Old filtered chip shop fat Quote Link to comment Share on other sites More sharing options...
tbourner Posted December 29, 2011 Author Share Posted December 29, 2011 I would have to ask why on earth you would want to add anything to the diesel? It has all the additives needed for good pump life and good all weather performance and low waxing. I certainly wouldn't add it to any modern diesel engine of mine, not that I have one. Because with the Honda it's a constant search for refinement and quiet running - I haven't done an oil change for about 3000 miles and it's starting to sound a bit clattery again, right after the change it sounds like a petrol! Also it's supposed to help with starting and idling smoothly, and since mine I think could do with a new battery and a fuel filter it's a bit tough to start and doesn't idle very well! I'm not that fussed, it's just another thing to do, if there's risks then I won't bother, but LOTS of people in the states do it, and I'm hearing more people over here are doing it as well. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 29, 2011 Share Posted December 29, 2011 I definitely wouldn't put additives in the diesel, common rail diesel pumps are jewel like creations and won't thank you fiddling with their lubrication. Diesels ARE clattery and noisy, the mixture doesn't burn from a spark ignition, it explodes through sheer compressive forces. It's price you pay for, well, for whatever reason you decided to buy a compression ignition engined car. Price up a fuel pump and injectors and decide then if you want to be a fuel scientist, or to leave it to BP and Honda Modern diesels are quite efficient when they work properly, but eye wateringly expensive if they go wrong, honestly, I'd leave the thing alone, change the oil every 10,000 or whatever Honda recommends, and turn the stereo up to drown out the tractor noises. Cold start issues are HIGHLY unlikely to be helped by adding 2 stroke oil to the fuel. If the Yanks do it that's a very good reason not to, in my books Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted December 29, 2011 Share Posted December 29, 2011 Because with the Honda it's a constant search for refinement and quiet running - I haven't done an oil change for about 3000 miles and it's starting to sound a bit clattery again, right after the change it sounds like a petrol! Also it's supposed to help with starting and idling smoothly, and since mine I think could do with a new battery and a fuel filter it's a bit tough to start and doesn't idle very well! I'm not that fussed, it's just another thing to do, if there's risks then I won't bother, but LOTS of people in the states do it, and I'm hearing more people over here are doing it as well. Am i reading you put the 2 stroke oil in the engine oil of the diesel not in the fuel ? Quote Link to comment Share on other sites More sharing options...
Dnk Posted December 29, 2011 Share Posted December 29, 2011 I've never had waxing problems, even last year when it got down to minus 15 or more my Landcruiser fired up no problem and ran fine. Quote Link to comment Share on other sites More sharing options...
Dnk Posted December 29, 2011 Share Posted December 29, 2011 Anyone heard of putting 2 stroke oil into a diesel fuel tank? 200:1 ratio (the same as a 2 stroke engine?). Supposedly makes it run a lot smoother and start easier in cold weather. Am i reading you put the 2 stroke oil in the engine oil of the diesel not in the fuel ? Quote Link to comment Share on other sites More sharing options...
tbourner Posted December 29, 2011 Author Share Posted December 29, 2011 , into the fuel as you would with a 2 stroke engine. Quote Link to comment Share on other sites More sharing options...
tbourner Posted December 29, 2011 Author Share Posted December 29, 2011 Wonder what oilman would add to the idea, apart from trying to sell some 2 stroke oil of course . Quote Link to comment Share on other sites More sharing options...
oilman Posted January 3, 2012 Share Posted January 3, 2012 Adding two stroke to diesel is pretty common in older engines as it provides greater upper cylinder lubrication, but it's not a great idea with some modern diesels. If the car has a diesel particulate filter fitted, the ash produced by burning the two stroke can block the filter. Cheers Tim Quote Link to comment Share on other sites More sharing options...
wile e coyote Posted January 3, 2012 Share Posted January 3, 2012 There we go so dont do it lol Quote Link to comment Share on other sites More sharing options...
tbourner Posted January 3, 2012 Author Share Posted January 3, 2012 Adding two stroke to diesel is pretty common in older engines as it provides greater upper cylinder lubrication, but it's not a great idea with some modern diesels. If the car has a diesel particulate filter fitted, the ash produced by burning the two stroke can block the filter. Cheers Tim So it's only a bad idea on diesels with DPF? And that's due to the ash content - so if you use JASO FC or FD oil with zero ash content you're safe? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 3, 2012 Share Posted January 3, 2012 I don't think ANY oil is ash *FREE*, its production is part of the combustion process, maybe it has additives that are ash free? I get the feeling you ain't going to be happy until you have poured some snake oil in the fuel tank Quote Link to comment Share on other sites More sharing options...
tbourner Posted January 3, 2012 Author Share Posted January 3, 2012 Actually, I'm the middle man between a 2 forum argument here! On the Accord forum I'm telling them all it's a bad idea and getting slated because X number of people have tried it and not had any issues. Maybe I just like arguing. Quote Link to comment Share on other sites More sharing options...
oilman Posted January 4, 2012 Share Posted January 4, 2012 FC and FD oils are are low ash, not zero ash. Most Honda diesels don't have DPFs (I think it's about 2008-9 that they started to appear in UK cars, earlier for European cars), so most won't be affected by ash content. Cheers Tim Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 4, 2012 Share Posted January 4, 2012 Particulate filters, like CATS, are a PITA and to be avoided if possible, IMHO. But there again I think diesels are to be avoided if possible Quote Link to comment Share on other sites More sharing options...
tbourner Posted January 4, 2012 Author Share Posted January 4, 2012 I went for the Gen7 (pre 2008) mainly because of the DPF (as well as cost of course). If I upgrade to a Gen8 I'll be getting a petrol. I'm also looking at getting my EGR deleted via remap in the next few months, just another pointless thing that causes more problems than it solves! Anyway; I think the upshot of it is do not use 2 stroke in your fuel if you have a DPF, and if you don't you can go ahead, but may be risking gumming up other high tolerance components - it's relatively low risk but you have to weigh up against the potential (claimed) gains and see if it's worth it. Quote Link to comment Share on other sites More sharing options...
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