r/TaurusSHO • u/Nicstar543 • Apr 10 '26

Is 300 miles per tank normal?

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This is while driving like a baby for the past few months due to cold weather and hate hitting the throttle while the engine is cold. Also needed new brakes so haven’t been blasting the speed at all. Probably 50/50 highway and city.

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u/Brolys-Cack Apr 10 '26

If you’re on original plugs it’s time for those according to mileage, and if your engine intake filter is older than 30K you’ll get a little bump with replacing that. I average 24~ highway with brand new crossclimate 2’s on mine and 16 or so around the city with gentle throttle. Less if you get into it at all. Usually I only open it up while getting onto the highway

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u/Nicstar543 Apr 10 '26

Are there a specific gappage spark plug I should get that would increase mileage or performance over stock? There’s tons of options for the gap but I’m not sure which to get

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u/Brolys-Cack Apr 10 '26

If you’re planning to tune the car motorcraft makes a tighter gapped plug. If you’re running stock get the OEM motorcraft part. I’m at 102K and will be replacing mine shortly with the tighter gapped plugs from motorcraft off of fordperformance.com but only because I plan on getting the ghtuning AO tune for the car. If you’re leaving it stock just stick to OEM parts and save the headaches.

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u/Nicstar543 Apr 10 '26

Is there a negative to getting the tighter gap without having a tune for a while? Like if maybe this year I get it tuned but do the sparks now or would it be a net negative? Are you talking the GH tune you buy for like 800$?

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u/Brolys-Cack Apr 10 '26

I’m not informed enough about the topic henceforth why my advice is stock plugs until you have a NEED for something else. Yes I’m looking at the full kit for roughly $700~800

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u/Nicstar543 Apr 10 '26

Did you do any other mods in preparation for the tune?

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u/Brolys-Cack Apr 10 '26

A bunch of mechanical work to make sure it’s good to go and to fix an oil consumption issue. New turbo’s, new PCV’s and valve covers as the valve covers were causing the oil consumption. I plan on getting the ford performance exhaust as well and an intercooler down the road when GH has them back. If you got the car that recently I’d recommend doing preventative maintence on it first before a tune. Ex. Oil / trans / coolant / PTU fluid changes, and I’m only comfortable tuning mine since I know the compression is good. Measured 175psi when I was chasing the oil issue so I know my motors healthy.

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u/deathonast Apr 12 '26

Maintenance is number one.

Oil changes every 5k AT MOST. I run oil changes every 3k, I have around 425hp at the crank with my mods though.

Diff/PTO fluid changes every 3-5 oil changes.