# 1990 Toyota Cressida - synthetic vs standard oil

**URL:** <https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636>\
**Category:** Maintenance/Repairs\
**Tags:** cressida, toyota\
**Created:** [March 17, 2019, 2:35pm UTC](https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636 "2019-03-17T14:35:15Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Charles14](https://avatars.discourse-cdn.com/v4/letter/c/9fc348/32.png) [@Charles14](https://community.cartalk.com/u/Charles14)\
**Post date:** [March 17, 2019, 2:35pm UTC](https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636/1 "2019-03-17T14:35:16Z")

</div>

I used standard oil (Pennzoil 10x30) for most of my over 390k Toyota Cressida 1990. The last 3 or 4 oil change I use synthetic Mobil 1. But now for financial reason I like to go back to Standard oil…What do you suggest?

---

<div class="post-metadata">

**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:** [March 17, 2019, 2:48pm UTC](https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636/2 "2019-03-17T14:48:01Z")

</div>

If you are doing your own oil changes and your car does not consume much oil between changes, I would stick with synthetic but change to a lower cost brand.  
But switching back to conventional oil would probably be fine.

---

<div class="post-metadata">

**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\
**Post date:** [March 17, 2019, 3:26pm UTC](https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636/3 "2019-03-17T15:26:50Z")

</div>

You can switch back and forth between the two without harm.

---

<div class="post-metadata">

**Author:** ![monkarl](https://avatars.discourse-cdn.com/v4/letter/m/919ad9/32.png) [@monkarl](https://community.cartalk.com/u/monkarl)\
**Post date:** [March 19, 2019, 7:33am UTC](https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636/4 "2019-03-19T07:33:31Z")

</div>

I agree with old\_mopar\_guy. Switching back won’t hurt anything.

---

<div class="post-metadata">

**Author:** ![Honda-Blackbird](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/honda-blackbird/32/3159_2.png) [@Honda-Blackbird](https://community.cartalk.com/u/Honda-Blackbird)\
**Post date:** [March 19, 2019, 12:08pm UTC](https://community.cartalk.com/t/1990-toyota-cressida-synthetic-vs-standard-oil/136636/5 "2019-03-19T12:08:20Z")

</div>

I actually used to love the Cressida… It was a Toyota Supra in business clothing. They were nice vehicles.

I agree with the others…just switch back to whatever oil you wish to use.