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One last Question on Oil


Rickster

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Warrenty is out. Last oil change done under warrenty. Close to 3000 miles since change and almost ready to add 2 quarts. Just waiting for sensor to say so. Went to dealer to ask what weight they use and they said 15-40. Can I add 5-30 to her? When I do do a oil change I will swap to 5-30. Is this advisable up here in Canada on the West coast?

Rick

2001 STS Mettalic Otter Grey, Black Leather, 213,000 kilometers - miles - ? Still running strong!

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What are you driving? A diesel truck?

Never underestimate the amount of a persons greed.

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I'd use 5W-30 - that's what's recommended for 2000+ Northstars.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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No idea why they would add the 15-40. I will add this question to my list of unanswered questions that I hope to find the answers to before I die.

2001 STS Mettalic Otter Grey, Black Leather, 213,000 kilometers - miles - ? Still running strong!

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