1999-2009 [Subscribe to Daily Digest] |
It means that it's doing part of it's job, to clean the engine...I'd be concerned if it didn't turn black...
posted by 98.169.15...
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.