Again I just pulled out the manual of 03 Corolla... This is the most popular car in Nigeria .. And most abused car with 20w50 mobil xhp 20w50.. The correct grade of oil regardless of weather is 5w30.. 20w50 is not good o .. You killing your engine gradually and car is not working efficiently... Again read the circle part.. If you have been using 20w50 please continue ,it is too late now ......but if just got a nice tokunbo, start using the correct oil either conventional or fully synthetic oil ... I prefer fully synthetic oil ... you get better protection.. And in none of the manual did they mention 20w50.....wake up people...... Wake up......

20W50 is the Nigerian oil. I am NOT gonna post again on this thread....you are just an attention seeker. Most of those Coro were serviced at jiffy lubes before the importation.

Smartchoiice:
20W50 is the Nigerian oil. I am NOT gonna post again on this thread....you are just an attention seeker. Most of those Coro were serviced at jiffy lubes before the importation.

Jiffy lube dont use 20w50 bro .... If anything they use synthetic blend..come on bro ...don't be ignorant..... Have used them before ...you killing your engine bro .....It is even too late for you to switch back to manufacture grade now .....

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