ʻO ka hoʻolei pololei ʻana he ʻāpana koʻikoʻi o ke kaulahao ʻoihana kaʻa.Ma kahi o 20% o nā ʻāpana ʻāpana i ka hana ʻana i kahi kaʻa no nā ʻāpana hoʻolei.Ma ke ʻano he ʻoihana i lalo i ke kaulahao ʻoihana kaʻa, hāʻawi nui ka hoʻolei pololei ʻana i nā poloka cylinder a me nā paipu o nā ʻōnaehana nui like ʻole, e like me ka mīkini a me nā poloka cylinder transmission, intake manifold a me exhaust manifold.ʻO kaʻoiaʻiʻo, ʻaʻole pili nā ʻoihana hoʻoheheʻe pololei i ka ʻoihana kaʻa, a nui nā ʻoihana i kēia manawa e pono ai ka hoʻolei ʻana i nā ʻāpana.

ʻO ka hoʻomohala ʻana o ka ʻoihana kaʻa, ʻoi aku ka hoʻomohala ʻana o ka ʻoihana kaʻa kūloko, e hāpai i ka hoʻonui ʻana i ka ʻoihana hoʻolei pololei kūloko.I kēia manawa, ʻo nā kaʻa kūloko, ʻoi aku ka nui o nā hiʻohiʻona SUV, e helu i ka hapa nui o nā kūʻai kaʻa.Eia kekahi, nui nā hiʻohiʻona i ka papa inoa kūʻai kūʻai SUV he mau kaʻa kūloko, a ʻaʻole nona wale kēia mau hiʻohiʻona e ka mea hana kaʻa.A ʻo nā wahi ʻāina ʻē aʻe o kēia mau ʻoihana kaʻa hiki ke hana i ka hoʻomohala ʻana i ka ʻoihana hoʻoheheʻe pololei e hōʻike i ka kūlike, a ʻaʻole e ʻae i ka ʻenehana e noʻonoʻo i kekahi wahi, no laila ʻaʻole e kaupalena ʻia ka hoʻomohala ʻana o ka hoʻolei pololei ʻana, ʻoiai inā pili ia me nā kaʻa kaʻa.

Me ka emi ʻana o ke ʻano kūloko, nui nā ʻoihana hoʻolei pololei i loaʻa nā mea kūʻai aku ma ka ʻāina āpau, a me ka hui pū ʻana ma waho.I kēia manawa ma ka home a me nā ʻāina ʻē, ikaika loa ka koi no nā ʻāpana hoʻolei pololei kiʻekiʻe.Ma hope o nā mea a pau, me ka hoʻololi o nā huahana, e kiʻekiʻe a kiʻekiʻe ka pololei.Hoʻopuka pū kēia i nā koi kiʻekiʻe i ka ʻoihana hoʻolei pololei.