Neil1210 Posted October 14, 2020 Share Posted October 14, 2020 Hi I'm trying to clear soot out of my car due to black smoke. I have added cleaner to the system but I was also looking at giving it do beens italian tune on the motorway. I know the engine needs to be hot but has anyone done this and what revs should I drive at and for how long? Quote Link to comment Share on other sites More sharing options...
iantt Posted October 14, 2020 Share Posted October 14, 2020 Prior to this, have you replaced the air filter and fuel filter recently? They may need doing to if it's been a while. Quote Link to comment Share on other sites More sharing options...
Neil1210 Posted October 14, 2020 Author Share Posted October 14, 2020 Air filter has been done Fuel filter no.... Is it a big job to do on a diesel? Quote Link to comment Share on other sites More sharing options...
st line x 140 driver Posted October 14, 2020 Share Posted October 14, 2020 drive it like its stolen Quote Link to comment Share on other sites More sharing options...
Neil1210 Posted October 14, 2020 Author Share Posted October 14, 2020 Yep but how long for 5 mins at high revs or 20 ect. Sent from my ELE-L29 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Neil1210 Posted October 14, 2020 Author Share Posted October 14, 2020 13 minutes ago, iantt said: Prior to this, have you replaced the air filter and fuel filter recently? They may need doing to if it's been a while. OK just googled change fuel filter. If that needs doing off to the local garage it goes lol. I can cope with the air filter lol Quote Link to comment Share on other sites More sharing options...
iantt Posted October 14, 2020 Share Posted October 14, 2020 I would leave the fuel filter if you've not done one yourself. As for driving it to clear smoke, I normally accelerate hard in 3rd gear to the limiter then slow down to do it again a few times. That normally does the trick when we have a smokey diesel for mot emmisions testing. 1 Quote Link to comment Share on other sites More sharing options...
Neil1210 Posted October 14, 2020 Author Share Posted October 14, 2020 OK cool I will give that a go. I have done it a few times on slip road upto motorway but only for a few seconds. Will do for a bit longer Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted October 14, 2020 Share Posted October 14, 2020 Twisty backroads work well too, gives the brakes a good hammering as well as the engine...I always have a thrash through the backroads before MOT...no smoke and no sticky calipers so far. 1 1 Quote Link to comment Share on other sites More sharing options...
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