Quote:
Originally Posted by snapdragon
I always spray Dr Magic/Oven Pride into them on my TDI, it foams up and drips out black. Leave it overnight and then hose them next time you clean the car - repeat 2-3 times. I do this annually before the MOT so they think the DPF has no 'issues' as the inside become completly clean silver metal again.. 
https://www.hihouse.co.uk/dr-magic-o...l-cleaner.html |
Hat tip to Snap dragon on the oven cleaner tip. I taped off the bumpers and gave a liberal spray of BBQ cleaner, outside and in. Left for about two hours and put newspaper underneath. I bought a bottle scrubber, took off the handle and used a drill to clean the inside of the tips with bucket of hot water to dip the brush in and clean as i went. Then i hit it with t-cut metal polish. Took me less than 10 mins per exhaust tip.
Compared to the hour or so I see detailers using tons of metal polish this was a super hack. The BBQ cleaner literally hoofed the carbon deposits off...
Nice one Snap...