I have AFFF bottles for both my cabin and engine compartment and have been through tech with no issues but need to upgrade my cabin system to a 10lbs bottle in hopes the truck hits 200mph this year. I hadn't noticed this before but the rule seems to prohibit the use of AFFF in the cabin.
I've sent emails to a couple of the tech people in the rule book but have yet to receive a response.
Before I buy a new bottle, is anyone else running AFFF for their cabin fire suppression system?
I have a message saved from an SCTA inspector telling me AFFF is ok for both engine and cabin. I questioned if I need separate systems or 1 - 10lb system for both me and engine (2 zone set up) and was told 1 - 10lb 2 zone set up of AFFF sounds good. It is likely what I will be doing this year.
ZZ