Can the Trunk Half Moon tank be used as an auxiliary fuel tank?
PNR 2015-2023 S550 Mustang Trunk Half Moon Tank
Status:
Open Feb 18, 2026 - 01:49 PM
1answer
Answer
Feb 02, 2026 - 10:23 AM
No , it’s not designed to function as an auxiliary fuel tank. The PNR S550 “Trunk Half Moon Tank” is typically a fuel cell / surge tank / drag racing fuel reservoir, not a DOT-approved auxiliary tank for extending driving range.
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