"knowledgeable advice" is a correct and usable phrase in written English.
You can use it whenever you want to refer to a piece of advice that is based on sound knowledge and experience. For example, "My mentor gave me some knowledgeable advice that I was sure to follow."
Nevertheless, in a 1997 article in the magazine Shooting Industry, Massad Ayoob, a popular pro-gun writer and trainer, urged dealers to seize the opportunities created by the new concealed-carry laws: "Defensive firearms, sold with knowledgeable advice and the right accessories, offer the best chance of commercial survival for today's retail firearms dealer".
The latter, who was the abler and more energetic of the two, had recently defeated Shah Shuja and driven him into exile, but true to form, the governor general of India, the Earl of Aukland, brushed off knowledgeable advice and decided that British interests would be best served by ousting Dost Mohammad and reinstalling Shah Shuja as king.
All the million little doubts that small humans are expert at implanting in their parents' guilty hearts when they are small tend to evaporate into thin air when they are older and in need of knowledgeable advice, or a friend with a skill, or even better, a job offer.
If the response is friendly, personal and not clearly coming from someone interested only in trying to make a sale rather than being proactive about giving knowledgeable advice, I wouldn't mind to be contacted by Best Buy employees on Twitter at all.
The authors thank Naoto Fujita (Hiroshima University, Hiroshima) for his knowledgeable advice.
Such practitioners also must be able to provide knowledgeable advice to their patients about what is known about new causes; patients want to know what must be done about the myriad environmental concerns that appear in the lay press and other sources of such information.
Assess your chances realistically, and seek knowledgeable, objective advice.
Getting the balance right requires fine tuning and knowledgeable faculty advice to the administration and Trustees, who have final oversight of athletics policy.
With over 30 years experience working with infants and children, Marsha Podd will offer practical advice, knowledgeable insights and tips on how to create a healthy sleep environment for you and your family.
This may be a bad way to get repeat business but it is a great way to obtain new customers by offering excellent customer service and knowledgeable (and actionable) advice.
With a sick ferret, always be guided by your (ferret knowledgeable) vet's advice rather than going on your own!
