I got 37 mpg all highway going around 70 - 75 MPH.
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Stock 2003 P5 180k miles
Mods - Dave B Rings, Short shifter, Extreme Mat the entire inside, LED interior lights, K&N intake, HID low beams, Phoenix Gold throughout for audio, Denso Iridium Plugs, Megan Lowering Springs, Corksport skid plate.
Wanted - Double din Nav with DVD to headrest for the kids (12 and 9), Redline shift and ebrake boot, MS front brake kit. Mazda6 18's.
I have yet to hit 400MPT. and I drive very conservatively most of the time. but almost all city driving, short trips of less than 10 miles consist of probably 90% of my driving.
on the rare occasions where I take a longer drive on a tank of gas, I usually get at least 20 more miles on a single tank, but thats not saying much as I still dont hit 400mpt.
but then again, I havent done anything to the car since getting it 2 months ago, but am planning on a basic tune up with fluid changes in the next month or so and at that time will be going with full synthetic fluids. also planning on resetting ECU (or replacing with an MP3 ECU) at the same time.
I have sportauto with 95k on it, drive 65 or so 2/3 frwy 1/3 city mixed and pull 400 like clockwork. Did 425 the last tank and filled it with 13.5 gallons which = 31.48. I have K&N SRI, all lightened pulleys except AC, UDP, VTCS removed, 1.8 coils, ZFR5 plugs, OBX header, 2.25" hi flo Magnaflow catted/flexed midpipe, 2.25 Magnaflow catback/muffler & atf cooler. This is running AC all the time using 87 reg unl & M1 syn oil/purolator micronic filter & AMSOIL atf.
I've noticed people running 1.8 coils in their 2.0 p5's, what's the purpose of it??
2003.5 Mazda Protege5
Tired of rising gas prices?
Those with ZFR5 long reach NGKs smooth the idle a bit, gets the coils off the top of the motor but mostly just looks different. There's a 626 valve cover that eliminates the coil mounting holes, has shorter fill neck that cleans up the look too but I'm still using the MSP vc with engine cover thing so it covers those anyway. Kind of a dare to be different or personal preference thing more than anything else.
I filled up again today and got 410 miles. I may try and see if I can push it by going with mid-grade gas next time and see if I could get more. Hmmmm, our 7 and 8 year old P5's are getting better gas mileage than our newer cousins. That is short lived until the Mazda3 gets the new Skyactive engine.