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Why do cars have tachometers?

  • 05-04-2015 8:19pm
    #1
    TOMP
    Closed Accounts Posts: 328 ✭✭


    Why do cars have tachometers? What are they useful for?


Comments

  • #2
    punisher5112
    Registered Users, Registered Users 2 Posts: 24,644 ✭✭✭✭punisher5112


    TOMP wrote: »
    Why do cars have tachometers? What are they useful for?


    Do you not mean trucks and buses?


  • #3
    roverrules
    Banned (with Prison Access) Posts: 331 ✭✭roverrules


    punisher5112 wrote: »
    Do you not mean trucks and buses?

    You're thinking tacograph


  • #4
    punisher5112
    Registered Users, Registered Users 2 Posts: 24,644 ✭✭✭✭punisher5112


    roverrules wrote: »
    You're thinking tacograph


    correct sorry didnt see that. my bad....


  • #5
    punisher5112
    Registered Users, Registered Users 2 Posts: 24,644 ✭✭✭✭punisher5112


    So one can judge when to change gear, also if there a fault and reving too high.

    Also so not to be red lining it all the time like some ould ones do see driving at 50 in 2nd gear:eek:


  • #6
    L1011
    Registered Users, Registered Users 2 Posts: 71,151 ✭✭✭✭L1011


    Allows you to drive more efficiently than just using engine note/feel to pick the right gear


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  • #7
    firestarter51
    Closed Accounts Posts: 2,382 ✭✭✭firestarter51


    handy for clearing the crap out of the exhaust also
    my car failed the nct due to emissions, i was advised to drive the s11t out of it in a low gear
    it worked too


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