Amsoil Engine Tear Down Pics

[buster]

Found this on a FB group, thought I'd share it. Who doesn't like good tear down pics?

Background:

"2012 Cruze Eco 1.4L Turbo. This car has seen nothing but AMSOIL Signature Series 5W-30 since 2013, and has been tuned since as well, first with Trifecta then with BNR, making about 50hp and 70lb-ft more power *to the wheels.* Starting in about 2015, the car was used to tow my 14' boat as well as my utility trailer and various uhaul trailers. Since I started working from home full time in 2015, most of the driving was short trips, wide open throttle to redline daily.
At 72k miles, I pulled the cams to upgrade valve springs. The oil in service at the time of this disassembly had 12,500 miles and 2 years on it, about 1/4 of which was with a trailer behind it and the rest of it hitting max boost daily. I stopped caring about fuel economy once I stopped commuting. The oil change prior to that went 15,622 miles and 18 months, and all oil changes before that were at 10,000-15,000 miles (dealer drained it a couple times to service the oil pan and PCV system or they'd all have been 15k miles)."

 

[wwillson]

Another engine ruined with extended oil changes.

 

[cheesepuffs2]

Another engine ruined with extended oil changes.

It's completely dependent on the engine. Run a VCM Honda engine as-is on extended drains and see what happens.

 

[K.Aoi]

Impressed the factory turbo still survives this long with a tune and towing, those particular turbos are incredibly failure-prone.

 

[jhellwig]

I thought that is short oci by Amsoil standards? I am not debating the merits of using Amsoil or extended changes but those “cam bearings” dont look right. They look like someone took a wire wheel to them.

 

[Fabulous50s]

That's nice... but we are looking at a 72k mile engine....I'm sorry, but who cares?

If it was 720k, I'd be intrested.

 

[Bill7]

Looks like a brand new engine. Extended OCI with some engines appears to be ok.

 

[K.Aoi]

I thought that is short oci by Amsoil standards? I am not debating the merits of using Amsoil or extended changes but those “cam bearings” dont look right. They look like someone took a wire wheel to them.

The consistent patterns on them look like machining marks to me.

 

[JustN89]

It's completely dependent on the engine. Run a VCM Honda engine as-is on extended drains and see what happens.

Done that, no problems.

 

[jhellwig]

The consistent patterns on them look like machining marks to me.

I guess that is what I wanted to say. It looks like someone refreshed the cam bores then put a cam in it. It doesnt look like it had a cam spinning in it for 72k miles.

 

[cheesepuffs2]

Done that, no problems.

You took both valve covers off after years?

 

[JustN89]

You took both valve covers off after years?

I have, on a 2012 MDX and 2008 Odyssey EX-L. All OCIs were 7,500-10,000 miles. The MDX had 100k miles (valve adjustment) and the Odyssey had 145k miles (valve cover leaking), if I'm remembering right. Extended OCIs with a quality synthetic oil are just fine in these engines.

 

[cheesepuffs2]

I have, on a 2012 MDX and 2008 Odyssey EX-L. All OCIs were 7,500-10,000 miles. The MDX had 100k miles (valve adjustment) and the Odyssey had 145k miles (valve cover leaking), if I'm remembering right. Extended OCIs with a quality synthetic oil are just fine in these engines.

You disable the VCM?

 

[JustN89]

You disable the VCM?

Nope. I have a muzzler on my RDX, but the other two did not.

 

[The Critic]

I have, on a 2012 MDX and 2008 Odyssey EX-L. All OCIs were 7,500-10,000 miles. The MDX had 100k miles (valve adjustment) and the Odyssey had 145k miles (valve cover leaking), if I'm remembering right. Extended OCIs with a quality synthetic oil are just fine in these engines.

I don't know if I would call that extended. The OEM interval, as dictated by the Maintenance Minder, could be as long as 10K.

 

[cheesepuffs2]

Nope. The I have a muzzler on my RDX, but the other two did not.

Interesting

 

[cheesepuffs2]

I don't know if I would call that extended. The OEM interval, as dictated by the Maintenance Minder, could be as long as 10K.

Yup, my Accord V6 tells me I should do 10,000 per the minder. I always change sooner than that though

 

[JustN89]

I don't know if I would call that extended. The OEM interval, as dictated by the Maintenance Minder, could be as long as 10K.

This is why I called it "extended"

Yup, my Accord V6 tells me I should do 10,000 per the minder. I always change sooner than that though

 

[dwendt44]

Good looking engine. Surprise for me as I didn'think GM could make a good 4 cylinder engine.
Was this mostly highway miles or stop and go commuter service??

My 2¢

 

[TiGeo]

Nice!!! Amsoil for the win!