Oil and Oil Related TopicsA place to post your oil related questions and comments
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Suppose someone is hitting the drag strip 2-4 times a month.....OR, they drive like they are on a drag strip when they are getting onto the highway etc. will the Mobile 1 extended life 5w-20 still hold up? Should I think about changing it out sooner....is it even the right oil for what I'm doing. I already cooked one barring and had it replaced under warranty (the whole motor) and I don't want to do that again.
If you daily drive pretty hard, i wouldn't run Mobil 1 Extend Life for the full 15,000 miles. I'd think 10,000 would be pretty acceptable though. Changing oil more frequently can do nothing but good for your engine.
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A friend works as a fleet mechanic at a large utility company. He told me they are using Mobil 1 full synthetic out to 15,000 miles, and changing the filter every 5,000 miles. He seems to think it works as long as you change the filter often.
I run Royal Purple in about all my vehicles except for my 77 granada beater only because the engine is wore and when you add synthetic to a wore engine you tend to loose more oil due to it's better lubrication properties.
This is also a really good deal well better than Walmart or any of the local auto parts store, sure wish I lived closer than 100 miles to Summitracing!
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