On the ETEC user site some have indicated using AMSOIL full synt. oil to replace xd-100 with no ill effects
your 2014 may still be under warranty and if such is the case I would stick to xd-100 in case of any claims
XD-100 is clean not smelly smokeless and apparently cleans th innards on your engine (little or no carbon build up) 🙂
My 75 ETEC is 13 years ….running only old on xd-100 and basically I would not change it even at 50-60 $ CDN a gallon
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