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Old 02-16-2011, 03:34 PM   #22
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Originally Posted by danewilson77 View Post
Do I think it will cause damage if you do use it for a short period of time? No. How long does Auto-Rx take to work? A long time. Quite a cunundrum isn't it?
That why it's broken down in phases, ie; clean and rinse. In a larger sump like our cars, you can go as far as 5K on either phase. ANY current crop of group III oil (sprintman makes a good recommendation with a 5W-40) will easily go 5K without, putting it like our favorite forum "expert" would say, blowing up your engine. I will throw in my .02 and say go with any non-syn HD diesel oil. If you're concerned about lots of stuff in there, run another clean/rinse cycle (which is recommended for engines over 100K anyway).
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