dgman

i had the same problem which was solved with a can of bg 244 carbon cleaner,give it a try as stripping the turbo is a seven man hour job.

it sounds very similar to the problem that i had some time ago,carbon build up in the turbo stops the variable vanes opening and closing.one can of bg244 cured my problem and at a cost of approx £20 it's worth a try.

fastest lex,could it be that you have the piston ring problem whereby oil is being burnt and blocking the dpf?

greg,take it to the dealer as your car may need the engine rebuild,if you have full service history it will be foc. prior to my engine being rebuilt my fuel economy tailed off rapidly.

try some injector cleaner or bg44k first before going to the mechanic.it's worth looking at the air filter too.

pauls13,i would be back to the dealer over the smoking from start as that is not correct. good luck

hi gav,powerenhancer give a syringe with the bottle of ar 6200.my findings after first tank are on the archoil ar 6200 thread. atb.

yep that right.

normski,as you say the bg244 is excellent.have you considered giving the archoil 6200 a go as your regular fuel additive,my car runs great on it.

greg,take a look at the bg244 and archoil 6200 threads.

well i put 210ml of ar 9100 into my engine oil today and i have to say that the engine definitely runs quieter now.

no the ar6200 is to be used as your regular fuel additive to prevent carbon build up and keep the fuel system clean. the bg 244 is to clean your system of previously accumulated carbon etc. you should start to feel a difference in performance after about 60 miles or so.

gav,i would let the bg244 do it's thing and use the ar6200 on the next tank. keep us posted as to your experience.

i thought the video of the ford truck in the link was proof that there was a material change in engine note.

well i have to say that at the end of my test ar 6200 has given me a 7% more miles than the previous tank with millers eco max additive.it provides smooth running and the engines full torque characteristics are maximised.it is excellent value for money at around 65p a tank for substantial economy increase. 503 miles on 58.47 ltrs =12.86 gallons=39.1mpg.

i am going to give this oil friction reducer a shot,it looks really interesting. http://www.archoil.com/index.cfm/products/ar9000-friction-modifier-friction-reduction-nano-technology-nano-lubrication-anti-corrosion/ar9100-nanoborate-nano-friction-modifier/

great to see that you are having good results from the bg244 norm,things are going very well with the ar 6200 too.

peter,blue smoke means that oil is being burnt and it is quiet possible that you may have the piston ring issue.if you have complete service history lexus will rebuild your engine free of charge,mine was done a few weeks ago.

i have filled up today with fuel and 6 ml of ar 6200 with almost 60 ltrs of diesel following a dilution rate of 1-10,000.i don't know what the uk price will be yet but following the usa pricing it works out at roughly 0.65p per 60 ltr fill up. it should take me about 12-14 days to use a tank of fuel.i will update then.

most likely carbon build up,put some bg 244 through a tank full and you will be happy.

gav,i would follow normski's advice and get lexus gb involved as if you have service history according to the schedule there should not be a problem.my own service history with lexus is up to 60k and 30k with independent and lexus rebuilt my engine without charge. i will let you know when i have tried the ar6200 but your engine may be too coked for any carbon cleaner to work but it may be worth you while to start with bg 244 as it's only £20 and it soon sorted the carboned vanes in my turbo. the ar6200 is a regular treatment during your normal fuel usage whilst bg244 is a once in 7-10k miles treatment and must imo be much more potent.

i have a sample of this to try when i next fill up. http://www.archoil.c...-burn-modifier/ the product will be available from powerenhancer soon.

normski,how many miles has your engine covered.

for sometime now my car has been suffering from a intermittent power loss between 1-2000 rpm and despite having the engine rebuilt the problem was still there.i had the fuel injection system checked and no fault found but the technician suggested possible carbon build up on variable vanes in the turbocharger.i wasn't relishing the prospect of the huge seven hour cost of stripping the turbo so after a bit of searching i came across bg 244 and i have to say it's brilliant,full and smooth power has been restored after only 160miles with it added to a full tank of fuel. http://www.powerenhancer.co.uk/product.php/3/bg-244-diesel-fuel-cleaner the best 20 quid i have ever spent.

bluenose,i don't know if the sat nav or bluetooth are affected as i don't have them on my model.