yeh fully synthetics were initially developed for hi tech engines coz everything jus kept on getting smaller i mean the internal parts such as bearings n all n normal oil wasnt good enuff 2 squeeze into such small parts n lubricate them!but later fully synthetic was made universal keh kissi car mein b aistaymaal karlo!n initially there was a problem in fully synthetics wit getting the ratio of detergents rite later this problem was solved n now they can b used in any car doesnt matter mehran ho ya S600!
i use to use mobil1 5w50..used mobil1 for 20,000km n now ive switched to liquimoly 5w40!both r bhoohat baytareen oils!the liqui moly1 tht m using rite now is synthoil high tech 5w40!
bas difference yeh hai keh mobil1 was for 2400rs and liqui moly is for 3250rs! mobil1 is good upto 10,000km and liquimoly 15,000km!
n jiss mechanic neh tumay yeh kaha khass keh aik jhappar maro aus keh moo par!nai koi bumper shumper nai utarta!woh mechanic anari hoga ais leeyay aus neh keh deeya hoga!I get my plugs changed witout opening the bumper or nything else!
n i wudnt recommend u using splitfire plugs in alto!use ngk iridium!u can refer to rafay for splitfire coz he had used them in his alto!
i even read ur post on the other topic of u buying splitfire plugs u mentioned tht u arent into racing n u need them for normal city driving on cng!shud hav asked us for advice b4 agar sirf city driving hee karni n u want good acceleration n mileage bosch ka super4 hee laga lehtay!they wud cost u sumthing like 900rs or mayb less!these wud b 4 tip sparkplugs!