Hello, All. Has my CX9 since brand new in 2012 and always used conventional 5W-20. Picked up some oil at Wal Mart the other day and noticed the synthetics are almost the same price as conventional these days. Id like to switch, but Ive read some older cars that have always used conventional may exhibit leaks if switching to synthetic. But having 75k miles - do you think its too old to switch or should I give it a shot?
Thanks for your opinion!
Thanks for your opinion!