BG MOA AND 109 COMPRESSION RESTORER

Joined
May 5, 2006
Messages
1,304
Location
Kankakee, IL
They are two different things here. BG 109 is a flush that attacks the pressurized areas like the ring packs VVT screens and what not. This is a quick one time thing. BG MOA is like STP, SLOB, etc on steroids. Auto-Rx is a slow progressing engine cleaner. I have used the BG stuff and it works. Will not degunk the whole engine however. If you have Carboned up'd rings though it is fantastic. If you want to desludge a motor not a bad start but Auto-Rx would be a great to finish the work safely.
 
Joined
Jul 26, 2005
Messages
313
Location
Lugoff, SC
Don't use the MOA or the "compression restorer". MOA seems to make sludge form faster (at least in the turbocharged engines I was told to put it in) and and compression restorer is so thick that the instructions from the distributor were as follows: "Run hot water over it to thin it out or else it won't come out of the can, or keep a few sitting in the sun before you use it so it stays hot and liquid". I have used their synthetic ATF, it seems to be compatible with the Volvo 5-speed (JWS3309 spec) but I would never run it in my transmission.
 
Joined
Jun 19, 2008
Messages
83
Location
MI
You are correct on the BG trans flush oil being used on a lot of Volvo's. I have been to two independants in the Detroit area for various things (try to do most of my own work though) and they both market that fluid. I just drain and fill with Mobil 3309 in my S60. FWIW: I had oil consumption issues with the S70T5 I have and Auto-RX has reduced the consumption to zero since I did the treatment in Jan 09. I use Amsoil AFT in my S70.
 
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