- Joined
- Sep 28, 2002
- Messages
- 39,799
By all means ..apply for your refund, but you'll likely see better mileage within a tank or two.
You HAVE to do a substantial amount of operation in open loop. That would be the only way you could achieve any noticeable difference. If you had severely degraded injectors (due to deposits) the normalized spray pattern and evened out fuel flow would be dictated by your fuel map would result in required fuel corrections to restore a:f balance in open loop.
After using Gumout Regane awhile back, you could FEEL the difference for a few days (in my wife's case- a tankful) The system corrected itself back to transparent in a short time.
You HAVE to do a substantial amount of operation in open loop. That would be the only way you could achieve any noticeable difference. If you had severely degraded injectors (due to deposits) the normalized spray pattern and evened out fuel flow would be dictated by your fuel map would result in required fuel corrections to restore a:f balance in open loop.
After using Gumout Regane awhile back, you could FEEL the difference for a few days (in my wife's case- a tankful) The system corrected itself back to transparent in a short time.