Rotaryknight
Go Kart Champion
They told him to add to oil too. That may be how. Sounds sorta like Marvel's. Used to use that in my previous cars. Haven't used it in he GTi though.
so uh, riddle me this... how is this BG stuff supposed to work if you dump it into the gas tank since its a DIRECT INJECTION ENGINE??
The dealer went ahead and took care of it. I talked to the service tech and he said it actually wasn't so bad. I guess they were on autopilot and said, "there's carbon, it's $800." They said it was SOP to inspect the valves when they replace a manifold. I still never got an explanation about why it was going to cost $800 at that point. Anyway it's clean now and I have a new intake manifold. (And had my 30K service at the same time)
They recommended that I start treating with BG Gasoline Direct Injection Cleaner. According to the BG website:
"BG Gasoline Direct Injection Cleaner is a two-part chemical process formulated to quickly soften and disperse baked-on deposits which accumulate on the intake valves of direct-injected engines."
You pour one bottle into the gas and one bottle into the oil about every 5000-7000 miles. It's convenient that I can't seem to find it anywhere but from the dealer. They said it was about $40 (they apparently didn't have any in stock). Anyone tried this? Does it work? Can I get it somewhere where I don't have to pay dealer prices for it?
Thanks again for all of the input. Knowledge is power and I was able to make good use of the information I got here today.
http://bgtechnical.blogspot.com/2012/05/gasoline-direct-injection.html
This is link explains DI and related carbon problems. At the 40 minute mark, the person discusses the BG 271-272 cleaning service. (At 45 minutes he summarizes.) He was very clear on two things.
1. The carbon build up is directly related to PCV oil.
2. The BG DI cleaning service requires that you remove the intake manifold while HOT, soak the valves with one solution and rinse the valves with the other solution. BG also provides a “tool” to scrape the valves.
Based on the information I’ve gathered, this is the BG procedure related to the before and after pictures of dirty and then clean valves. I could be wrong, but it appears the other BG products that one adds to the gasoline and oil are NOT related to this cleaning process.
so uh, riddle me this... how is this BG stuff supposed to work if you dump it into the gas tank since its a DIRECT INJECTION ENGINE??