# 2006 Kia Optima - Which fluid? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** kia\ **Created:** [January 11, 2023, 4:00pm UTC](https://community.cartalk.com/t/2006-kia-optima-which-fluid/188437 "2023-01-11T16:00:21Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Banky](https://avatars.discourse-cdn.com/v4/letter/b/58956e/32.png) [@Banky](https://community.cartalk.com/u/Banky)\ **Post date:** [January 11, 2023, 4:00pm UTC](https://community.cartalk.com/t/2006-kia-optima-which-fluid/188437/1 "2023-01-11T16:00:21Z")
Can I use API service SM, SL, SJ or SF engine oil on Kia optima 2006 2.0 16v engine ---
**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\ **Post date:** [January 11, 2023, 6:40pm UTC](https://community.cartalk.com/t/2006-kia-optima-which-fluid/188437/2 "2023-01-11T18:40:31Z")
Any grade equal to or higher letter than specified in your owners manual. If the manual states SF all are fine. Be sure to use the specified viscosity. ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [January 11, 2023, 10:27pm UTC](https://community.cartalk.com/t/2006-kia-optima-which-fluid/188437/3 "2023-01-11T22:27:23Z")
Only SM meets your car specs, _and that’s only if it’s the correct grade and type_: > **[Oil Categories](https://www.api.org/products-and-services/engine-oil/eolcs-categories-and-classifications/oil-categories#tab-gasoline)** > > The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. Our more than 600 corporate members, from the largest major oil company to the smallest of... Do you have a bunch of old oil sitting around? ---
**Author:** ![Cavell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cavell/32/43396_2.png) [@Cavell](https://community.cartalk.com/u/Cavell)\ **Post date:** [January 11, 2023, 11:43pm UTC](https://community.cartalk.com/t/2006-kia-optima-which-fluid/188437/4 "2023-01-11T23:43:49Z")
17 years of use. Seems impressive for any car.