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Discussion Starter #1
New to group here in SF Bay Area as just purchased a 15 Overland High Altitude 2 wheel drive with just 37,000 miles and is Certified Pre-Owned. Heard various comments from dealer and service dept about oil change interval with the 100% synthetic Chrysler oil. What do other owners think? BTW planning on mostly open highway miles not in any rugged commutes. Thanks
 

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Update to above. Asked my local Jeep service manager about SB 18-078-16 Rev A (switch oil to 5-40) and he said it didn't apply to my 2015 even though the SB stated it applied to vehicles built on or before 6/30/16. He said that the SB was ONLY on the 2016 models built then! I want to switch to 5-40 now. Thoughts ?
 
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