Avtomobil uchqunlarini almashtirish sikli shamning materialiga bog'liq.

Agar u oddiy nikel qotishma uchqun bo'lsa, uni avtomobil taxminan 20,000 kilometr yurgandan keyin almashtirish kerak.
Agar u platina uchqun bo'lsa, uni 40,000 kilometr masofada almashtirish kerak.
Agar avtomobil iridiyli shamlardan foydalansa, ularni har 60,000 dan 80,000 kilometrgacha almashtirish mumkin. Agar avtomobil yuqori sifatli iridiy-platina qotishma shamlardan foydalansa, haydash masofasi 120,{7}} kilometrga yetishi mumkin.