# Switching from Synthetic blend back to regular motor oil

**URL:** <https://community.cartalk.com/t/switching-from-synthetic-blend-back-to-regular-motor-oil/19734>\
**Category:** Maintenance/Repairs\
**Created:** [September 18, 2008, 8:34pm UTC](https://community.cartalk.com/t/switching-from-synthetic-blend-back-to-regular-motor-oil/19734 "2008-09-18T20:34:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sevenup27](https://avatars.discourse-cdn.com/v4/letter/s/ba9def/32.png) [@sevenup27](https://community.cartalk.com/u/sevenup27)\
**Post date:** [September 18, 2008, 8:34pm UTC](https://community.cartalk.com/t/switching-from-synthetic-blend-back-to-regular-motor-oil/19734/1 "2008-09-18T20:34:07Z")

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I have a coupon for a free oil change with a synthetic blend. I have been told by a few people that if I go to a synthetic blend, I will never be able to go back to regular oil. Is this true? Will it do any damage to my car if I use the blend once and go back? I don’t want the extra cost forever, I just wanted to use my coupon.