So I've been noticing an oil smell, I popped the oil fill cap off while idling and have blow by coming out of the cap. Crawled under the truck and found that my blow by tube was wedged against my frame and spewing oil under everything. I re-routed it but noticed that there seems to be too much oil coming from the tube. Checked oil and noticed I was about 3 quarts low after 4200 since last oil change. Theres no way I should be losing 3 quarts in 4000 miles. I changed my oil yesterday so I can start watching it closer. I've been told that blow by coming out of the cap means engines about to go and I should get rid of it. Advice?????