What Oil to use?M1, Castro synt? or other

[mptoledo]

Originally Posted by vath2001

FYI... I Just did a Mobil 1 oil change, 10w30. In retrospec, I would have gone to 10w40. I am not sure but it seems to runs a little hotter now, compared to the old oil (which I have no way of knowing the weight). But now I am driving in the summer compared to the spring.

Honestly Vath2001, What I have read ,and its a lot, you need to stay away from xxW30. Most experts warn never to use it. Now there is a cure, drain out 2 or 3 quarts and add xxW50. It gives it a xxW40 average. Some guy on another site posted he used the same as you and the "experts" told him to get it out as soon as possible. They are more concerned about the weight rather than the brand.

PS I saw the miejers add also for a gallon of M1 for $19.99 Damn nice price.