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Mazda Protege5

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Comments

  • iamziamz Posts: 542
    I agree with everything autonomous and Meade said on the quality and appearance of the Traction T/As. The only thing I did different was to go with 55 series (205/55/16) and I think H rated.
  • autonomousautonomous Posts: 1,769
    The only thing I did different was to go with 55 series (205/55/16) and I think H rated.
    You're right: the 205/55/16 are H rated (210 km/h); they're about 10% cheaper than the 205/55/16 V rated (240km/h). So, your H tires are not only great performers but also a great value. :D
  • the only problem with 205/55/16 is that you're running a taller sidewall, which will affect performance for the sake of a better ride.

    your steering probably is not as 'crisp' as before either...oh, and your speedometer is going to be off by more than 15%.
  • I had my tires of my P5 replaced 3 weeks ago. I wished to go for BFGoodrich Traction T/A but there was no 195/50R16 and I didn't know that 205 fits. I got the Toyo Proxes 4 instead. They are great tires, very good dry and wet traction, good handling, comfortable and quiet though with some noise in highway. However the road feel becomes more sedan like because of the softer tire. I also noticed that the gas milage dropped by about 5% and the transmission(Automatic) engaged in the 3rd gear for longer time before it switches to 4th gear. May be this is the reason for lower gas mileage.
  • mdaffronmdaffron Posts: 4,421
    Here's an excellent online tool for calculating speedometer error.

    http://www.paspeedo.com/calculator.htm

    Meade
  • Was Kumho ever used as an OEM tire on the 2002 Protege's? I'm asking because we are thinking of buying a used Protege and it has Kumho tires on it (44k miles).
  • erics6erics6 Posts: 684
    Nope. OE Dunlops, at least here in the states. I've got some Kumuho's as replacements on my 02. With 44k miles, the tires should have some decent tread left.
  • autonomousautonomous Posts: 1,769
    thinking of buying a used Protege and it has Kumho tires on it (44k miles)

    Can you check the sidewalls to see which model and size of Kumho tires you have? If the ones on your prospective car are 195/50/16 with a rating of V (150mph) then they match the original Dunlops. The Kumho Ecsta ASX or Ecsta Supra are two examples of excellent models. I have noticed that Walmart sells some very inexpensive Kumhoes.
  • iamziamz Posts: 542
    Actually, the speedometer error is only 7.2% according to my GPS (checked multiple times). The ride improved quite a bit, as I expected, and oddly, cornering still feels almost as crisp as the Dunlops. No noticeable decrease in acceleration either. I'm sure it's there, I just can't detect it. Fuel economy has improved by about 3% which allows me about an extra mile per gallon.

    The real reason I went with the 55 series was so that visually the tire fills out the wheel well more fully. And as a bonus the car sits off the ground just a bit more, which can't hurt here in the snowbelt.
  • your extra 1 MPG may be a false reading due to the taller sidewall and the affected speedometer error.

    sorry about the 15% mistake. it was just my personal approximation.

    either way, your speedo is off 7.2%...and that's a lot.
  • iamziamz Posts: 542
    The extra 1 mpg is actual. It's an average over many tanks and and takes into account actual distance traveled vs indicated distance traveled. It comes from the fact that the engine does not work as hard (lower rpm) at a given speed.

    The speedometer error is easy enough to live with. As a motorcyclist, I'm used to dealing with speedometer error of that magnitude. Only on bikes, the speedometers are always optimistic by 6% or more.

    On the car, I just keep a few conversions in my head. So for instance, if I want to drive 62, I keep the speedo at 58. If I want to keep the car at just under 70, I drive 64 to 65.
  • ripcordripcord Posts: 23
    Does anyone have any experience with the Iridium spark plugs? My P5 was getting great gas mileage, until I changed the to synthetic oil, a new K&N air filter and Iridium spark plugs. Several websites on the internet mention using the V groove plugs instead of platinum or iridium because of gas mileage. Doesn't make sense to me, but I am open to any thoughts anyone can add to this. Thanks.
  • iamziamz Posts: 542
    Your best bet is to go back to the factory plugs. I know of no one who actually experienced a measurable performance increase from upgrading their spark plugs. And by measurable I mean at least four separate runs on a dyno. First with new factory plugs followed by the so called "performance plugs" and then once more with the new factory plugs and again, the performance plugs.

    I do know of people who have had their vehicles clearly run like crap after putting in aftermarket performance plugs.
  • How does the P5 perform in the winter? My friend is still thinking of getting the P5 with 44k on odo. Not sure if the car has ABS. I know it has Kumho exsta..somthing tires on it. I have to take another look at this car before the final decision is made. Hope this winter is mild compared to last year!
  • ripcordripcord Posts: 23
    Thanks for the reply. I think I will put the NGK V-groove plugs in it tomorrow and see if there is a difference. It is definitely not running as good as I would like it to with the iridium plugs. I will report back to let everyone know what I found after putting in the V grooves.
  • ripcordripcord Posts: 23
    Has anyone used the NGK zfr5f-11 long reach plugs in their 2.0l P5? Apparently these are the stock plugs for these cars in Japan and also in the 1.6l engine. Causes the fuel/air mixture to ignite earlier which in turn causes the engine to run smoother etc etc... Apparently no issues with piston damage which makes sense due to the non-interference engines.
  • limatelimate Posts: 4
    I recently bought a 2002 protege5 with auto tranny. I feel the car is slowed down quickly on the flat road if the acceleration pedal is not pressed after reaching certain speed, eg, 40 mph. Has anyone similar experience? Is this normal for protege5 or I need to do something to make it smoother?
  • autonomousautonomous Posts: 1,769
    slowed down quickly on the flat road if the acceleration pedal is not pressed after reaching certain speed, eg, 40 mph. Has anyone similar experience? Is this normal for protege5 or I need to do something to make it smoother?

    No, this is not normal. How many miles on your P5? What kind of maintenance has been done on the car to date?
  • limatelimate Posts: 4
    My P5 has just past 30K miles after my purchasing for 2 weeks. The tight driving feeling is compared to my former Toyota Camry driving. Maintenance is regular oil change every 3000 miles from the former owner. Any suggestion for the reason of the tight driving is highly appreciated. Meanwhile I am watching the gas mulage to figure out what I should do.
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