Quote:
Originally Posted by Rogviler
Yes, but because it burns so well it also gives you the same "fix" if you have bad compression, incorrect timing, et cetera. So if it runs quieter no matter which you have I don't see how it's automatically a fuel problem. It could be any of those.
-Rog
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I've never seen it correct compression. if compression is bad enough the purge wont mask it. Same with timing. It's mainly used to mask poor nozzles. I only say that cause I did it on my 92 300d before I swapped it and it didn't mask the low cylinder compression misfiring.
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Only diesels in this driveway. 
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k
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