It sucked out transmission fluid and differential gear fluid (which is thick) as well. The tubing can come out of the blue adapter which isn't a deal breaker and was actually beneficial as I was able to put a different flexible hose on it in replacement of the solid one that comes with it. The connections do seem a little too tight and can be difficult to separate. Other issue was it doesn't say what to have the PSI set at. Looked all over the manual and company website and no mention of what's recommended, only what other people have done. All-in-all, I'd buy it again as it was the best value for what one gets. Would be nice if it came with another extension like others.