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Old 08-08-2019, 10:16 AM   #1
Shitin 'n Gitin
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Join Date: Mar 2007
Location: Pasadena, MD
Posts: 1,416
Swapping from 93 to 116 Octane - best way to get all the old 93 out

Hey guys! Haven't been on in a while - the mach is still running great. I have a question because I just got a tune for some Fuse 116, but I was curious what the best, easiest, and cleanest way was, to get all the 93 out of the tank so i can put some race gas in.

I read you cannot siphon because of a 1-way valve in the filler neck.

The next option is disconnecting the fuel line at the rail and bumping the key, but the fuel pump will stop after a second or two, correct? That would take an hour!

I am just below 1/4 tank, so there isn't that much fuel in there. Any advice?
2003 AB Mach --

442/435 @ the rear ALL MOTOR -Race Gas
FRPP BOSS 5.0 block, 10.6:1 compression, Manley H-Beams; Diamond flat-top pistons, P&P heads W/ 5-angle valve job & ARP Head studs, PP upper/lower intake, Comp Stage 2 N/A cams, FR500 springs, valves, and followers, Tube K with coilovers and Bilsteins, Kooks, Stingers, 2.97 T-56 Magnum, 31 Spline Superior axles & Auburn-pro dif, built battle boxes, KB BAP w/ 39lb injectors, and 4:10's.
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