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19bonestock88 · 04-06-2018, 10:03 PM

Look under your hood... the Duratec trucks are supposed to have an e-fan stock, that is only used with AC on... a tune can unlock its full time use and other things included...

Your long commute would be the best possible reason to do an 87 oct tune(the programmer also would likely have a 91 tune), as it would help with ROI, what with you going through 20-25 gal a week

04-06-2018, 10:03 PM	#6 (permalink)
19bonestock88 Master EcoModder Join Date: Jun 2016 Location: KY Posts: 1,352 IGL - '04 Saturn Ion Team Saturn 90 day: 56.19 mpg (US) Thanks: 63 Thanked 366 Times in 269 Posts	Look under your hood... the Duratec trucks are supposed to have an e-fan stock, that is only used with AC on... a tune can unlock its full time use and other things included... Your long commute would be the best possible reason to do an 87 oct tune(the programmer also would likely have a 91 tune), as it would help with ROI, what with you going through 20-25 gal a week __________________ My current Ecotec project... My last Ecotec project...