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One problem here though. Posted by SWEDECAR [Email] (#112) [Profile/Gallery] (more from SWEDECAR) on Wed, 16 Jan 2013 08:45:27
In Reply to: are the coffee grounds carbon?, Snowmobile [Profile/Gallery] , Tue, 15 Jan 2013 20:36:29 Members do not see ads below this line. - Help Keep This Site Online - Signup
When this whole group of people here includes highly skilled metallurgists and chemical engineers together with farmers and layers and such and we are mentioning semantics on the general board in many posts.
I might not be technically, literally or legally correct when I say carbon deposits.
It's just that that's what our industry have called the deposits setting up inside the throttle body and PCV system and oil pan for years and years.
The coffee ground trapped in the filter might not have been dinosaurs turned to oil turned to coal and back to carbon in its right terms.
You can easily crush the kernels into dust with your finger but it is not much that dissolves them easily just by spraying something on there so the hopes that you could fill up the engine with something and happily rinse it out is not feasible.
Just this Saturday I had a 9-3 in for an oil change that I dropped the pan on earlier due to severe sludge. Right after the job I changed the oil a couple of times and the filter was full of dirt that had still found its way down from the top and side walls but this time about 10K later, it was just a few kernels here and there in the filter.
Since I use a hotwash I don't need to sit and poke each kernel out of the screen.
Here is a severe case from years ago.
Same pan after hotwash
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