'08 Corolla noticable varnish after Castrol GTX

[jongies3]

Varnish isn't anything to worry about it, but keep an eye on it. If it turns to sludge then you got issues to address!

 

[bbhero]

That looks really, really good.... . Cam lobes look really quite good as well.

 

[bilibako2]

Nice.Looks clean.

 

[Luftmasse]

Pics has been heavy filtered, hence, cannot see varnish build-up.

 

[VersatileGuy]

My mom bought an '07 Matrix, which has essentially the same engine(1ZZ-FE). My experience with the dealer's Genuine Toyota dino oil is that the recommended 5000 mile interval is already pushing the limits of the Toyota dino oil--you can feel the drag on the drivetrain--and breaking past it usually results in the oil acquiring a nasty, almost brownish-green, opaqueness to it. It began its life with dino and has used dino oil mostly since the dealer has a 35 dollar rebate every three months, making about 6 quarts of the oil basically free. The varnish around the fill hole has been there since the beginning of its life.

 

[Zaedock]

With a buck sixty on the engine, that is super clean.

 

[RISUPERCREWMAN]

Honestly with 160K with a Dino brew it don't look bad at all.

 

[aquariuscsm]

Where's all that varnish that was mentioned? It looks spotless to me.

 

[CT8]

 

[FordSVTGuy]

I'd say given the images you've posted, use a quality oil of your choice and don't look back. Some other issue will do your car in long before an oil related issue will

 

[ChrisD46]

A few Options : Sub 1 qrt. of oil with MMO and run a 3K mile OCI , Ditto but run 1 qrt. of Rislone High Mileage , or lastly run 5 oz. of Seafoam in the oil over the last 200 ~ 300 miles of the OCI . All work and I have never had any trouble using with multiple engines of various age .

 

[DavidJones]

Can you get a measurement on that varnish thickness for me?