Syn or conventional?

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May 25, 2018 | 05:21 AM

IrmoRabbidMoose

Thread Starter

Junior Member

Joined: May 2018

Posts: 4

Syn or conventional?

hey everyone,
Im new to the forum and i just purchased a 2003 accord lx with close to 200k miles with the k24. Its been very well cared for its whole life. It looks like the previous owner used conventional motor oil but id like to get the most out of the engine but i dont want to break up any build up that might be holding seals together. Ive done some searches and ive got mixed answers so id like to ask you. Synthetic or conventional at this stage? Thanks!

May 26, 2018 | 12:06 PM

acmech52

Super Moderator

Joined: Mar 2006

Posts: 5,959

welcome to the forum. i would continue to use the same oil the previous owner used. you are correct to not want to break up any build up. i've seen this happen a few times with high miles vehicle.

May 27, 2018 | 06:36 AM

bucwheat

Senior Member

Joined: Apr 2009

Posts: 2,943

From: Evans Ga.

Welcome in,I agree stay with a good quality oil that the car came with.

May 29, 2018 | 01:17 PM

IrmoRabbidMoose

Thread Starter

Junior Member

Joined: May 2018

Posts: 4

Understood. Now, I’m curious to know. I’ve seen several high mileage oils but only some are labeled as full synthetic. Would it harm the car to go with a regular high mileage oil?

May 29, 2018 | 01:58 PM

acmech52

Super Moderator

Joined: Mar 2006

Posts: 5,959

i currently use moble 5w-20 syn high milage oil since the car hit 150k. currently 285k+ runs great.

May 30, 2018 | 12:59 PM

bucwheat

Senior Member

Joined: Apr 2009

Posts: 2,943

From: Evans Ga.

I don't see how it could harm anything,I also use full synthetic oils in all my cars.

Jun 1, 2018 | 12:51 PM

2thpic

Member

Joined: Mar 2018

Posts: 62

From: arkansas

if to change to full synt. oil then you are locked in and not able to go back to reg. oil. Or at least that is what I have been told. so that is now the only thing I put in my wife's car. also you have to get the oil filter that matches. I use Mobil 1 full synt. and a Mobil 1 matching filter for synt. oil.