# Royal Purple High Performance/Extended Life - How Many Miles can I go before next oil change?

**URL:** <https://community.cartalk.com/t/royal-purple-high-performance-extended-life-how-many-miles-can-i-go-before-next-oil-change/154735>\
**Category:** Maintenance/Repairs\
**Created:** [December 15, 2019, 8:00pm UTC](https://community.cartalk.com/t/royal-purple-high-performance-extended-life-how-many-miles-can-i-go-before-next-oil-change/154735 "2019-12-15T20:00:22Z")\
**Posts on this page:** 3\
**Page:** 8

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**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\
**Post date:** [December 24, 2019, 4:53am UTC](https://community.cartalk.com/t/royal-purple-high-performance-extended-life-how-many-miles-can-i-go-before-next-oil-change/154735/142 "2019-12-24T04:53:00Z")

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So, prevailing science theory has never changed or been wrong?

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**Author:** ![cdaquila](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cdaquila/32/18089_2.png) [@cdaquila](https://community.cartalk.com/u/cdaquila)\
**Post date:** [December 24, 2019, 12:51pm UTC](https://community.cartalk.com/t/royal-purple-high-performance-extended-life-how-many-miles-can-i-go-before-next-oil-change/154735/143 "2019-12-24T12:51:10Z")

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Oh, for crying out loud. I’d put coal in all your stockings, but then some of you might say I was promoting climate denial. 🎅 Cheers. Let’s stay on topic.

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**Author:** ![cdaquila](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cdaquila/32/18089_2.png) [@cdaquila](https://community.cartalk.com/u/cdaquila)\
**Post date:** [December 24, 2019, 12:51pm UTC](https://community.cartalk.com/t/royal-purple-high-performance-extended-life-how-many-miles-can-i-go-before-next-oil-change/154735/144 "2019-12-24T12:51:14Z")

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Closed on December 24, 2019, 12:51pm UTC



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