text:  639. And coming up next, it is Dave Serio right here on WFMD. When it comes to cleaning your vehicle's injectors and combustion chambers, you have two choices. You can treat the problem with off-the-shelf retail products in pretty bottles with little or no result. Or you can use what professionals use with just one tank of fuel. It's called BG44K. You can find it at a shop near you at BGfindashop.com.