# To Change Or Not To Change

**URL:** <https://community.cartalk.com/t/to-change-or-not-to-change/182384>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, elantra\
**Created:** [February 9, 2022, 6:34pm UTC](https://community.cartalk.com/t/to-change-or-not-to-change/182384 "2022-02-09T18:34:16Z")\
**Posts on this page:** 2\
**Page:** 3

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**Author:** ![Scrapyard-John](https://avatars.discourse-cdn.com/v4/letter/s/f6c823/32.png) [@Scrapyard-John](https://community.cartalk.com/u/Scrapyard-John)\
**Post date:** [February 14, 2022, 3:50pm UTC](https://community.cartalk.com/t/to-change-or-not-to-change/182384/41 "2022-02-14T15:50:32Z")

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> [@MikeInNH](#):
>
> You on the other hand made the claim that the extended oil changes is because of oil.

Technically, I made the claim that Toyota wouldn’t recommend a 10k mile oil change interval with conventional oil. That’s a fact, since they never have and do not currently. Pretty easy to draw conclusions as to why.

> [@MikeInNH](#):
>
> We tend to keep our vehicles 300k+ miles. From past experience I know the 5k oil change interval has a high probability of getting us there

I agree with that.

Since you’re a scientific guy, this article from “scientific American” seems to think that oil change intervals can be extended with synthetic.

> **[Three Months, 3,000 Miles Or Longer?: The Truth about Oil Changes](https://www.scientificamerican.com/article/oil-change-truths/#)**
>
> Quick-lube chains say 3,000 miles, auto manufacturers recommend 5,000 to 7,500 miles and synthetic oil companies, 10,000. How often do you really need to change the oil in your car?

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**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\
**Post date:** [February 14, 2022, 7:09pm UTC](https://community.cartalk.com/t/to-change-or-not-to-change/182384/42 "2022-02-14T19:09:56Z")

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And they may be right. I’m not sure…thus the reason I’m not changing. This whole thread started with the claim that extended oil changes can be acceptable with synthetic. I just pointed out that of the vehicles I owned that still used regular dino oil - said NOT to extend oil change interval even if using synthetic oil. Personally I think it’s a combination of the engine design and synthetic. My wife’s Lexus ES 350 oil recommendation is 5w-30 dino oil and change every 5k miles. Switching to synthetic will not change the interval on that engine.

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