BAD DOG Posted October 26, 2013 Share Posted October 26, 2013 I've used Texaco Havoline 10w30 oil in my 96 GMC pickup for most of its life it is pushing 500,000km or about 300,000mi and doesn't use a drop of oil between changes. I went to the Parts source store where I be been buying my Texaco oil since its getting harder to get in Canada. I used to get it at Carquest right in town along with my Texaco Ursa 15w40 for the trucks but they don't keep it anymore. So I use Chevron Delo 15w40 in the Mack. So I guess I'm gonna have to switch the old pickup to it too. Unless I take a road trip over to O'reilly's in Detroit and stock up. They carried the Havoline 10w30 the last time I was there. Quote Link to comment https://www.bigmacktrucks.com/topic/33271-oil/ Share on other sites More sharing options...
Eastcoastdiesel Posted October 26, 2013 Share Posted October 26, 2013 I'd call and check, I personally use rotella triple protection in all my trucks including personal ones. It's pretty dern good Quote Link to comment https://www.bigmacktrucks.com/topic/33271-oil/#findComment-213422 Share on other sites More sharing options...
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