Varnish and Deposits

[INTJ]

OK, My Triton 4.6 has quite a bit of deposits and is entirely varnished under valve covers.

My question: Is this varnish and the other carbon like stuff caused solely from a loss in TBN, ergo the oil gone acidic?

I went a year between oil changes for 5 oil changes at 20k HWY miles/year ( Amsoil- no oil analysis). At 125k I looked into oil fill in valve cover, and saw this.

I'm wondering about the wear, and right now I'm into 1000 miles on the cleaning cleaning phase of Auto RX.

 

[Lead Shoes]

Pictures??? and you went 20k miles on Amsoil with out sending out one sample???? that's not good....

 

[Smokefan1977]

Im not going to bag on amsoil but they need to be more forthcoming and what people should expect from their product. When more uninformed people go through the website they just have the impression they can go 25,000 on an OCI. Most people don't even know what a used oil analysis is.

Imagine the people that do this and don't even check the oil level. This is why im not and Super long OCI person

 

[cb_13]

Originally Posted By: Smokefan1977
Im not going to bag on amsoil but they need to be more forthcoming and what people should expect from their product. When more uninformed people go through the website they just have the impression they can go 25,000 on an OCI. Most people don't even know what a used oil analysis is.

Imagine the people that do this and don't even check the oil level. This is why im not and Super long OCI person


I agree I remember seeing a used oil analysis where a guy had ran 6 months and 5k miles in an F150 with amsoil and the oil was done. Luckily he realized he was in extreme conditions of cold and short trips changed it out and had a used oil analysis done before trying for more mileage. I am not picking on amsoil just pointing out that 15-25k mile OCI are not for everyone even with a quality oil.

 

[cb_13]

https://bobistheoilguy.com/forums/posts/2329258/
Maybe this link will work. It was not as low on tbn as I was thinking but was actually less miles.

 

[INTJ]

OK pictures coming up.... to be fair there is 1000 miles of cleanup in progress as the picture are going to be snapped when I'm done eating.

And to be more accurate, there was a 35k oil in one run- Amsoil 0-30, and before the Eao type filters there were the SDF's. These you changed at 12.5k, so there was an added quart + another for top off for the years run..... some added TBN for 3 of the 5 oil changes.

I used their air filters with this.

Maybe this went south at my usage of the annual filter for other two runs, IDK.

 

[spasm3]

i've wondered if varnish might be caused by volatility, vapors condensing?

 

[Radman]

If he had of sent in a sample Blackstone would tell him to extend it to 25K.

 

[Pablo]

For sure you should go with the 15K Amsoil recommendation.

I've never seen an Amsoil engine get crusty, but running a used oil analysis will at least tell you if you have fuel dilution going on. Most initial engine deposits are fuel dilution related.

It should clean up. Interesting to see how the AutoRx will do.

 

[91344George]

@INTJ:

Next time you might just want to check into a HDEO, like
Shell Rotella ....High detergent oil designed for diesels but it can be used in gas engined vehicles as well, provides top notch gentle cleaning right in with the oil.

 

[gathermewool]

Man, you really messed up, brother! Keep it up and I'd bet you won't get too much more than another 125k miles out of this beast. If it doesn't explode then, then another 125k miles after that will surely do this engine in!

 

[INTJ]

All pics are right side valve cover.Last image is inside valve cover.

 

[gathermewool]

Is there an actual ridge on the cam lobes? That doesn't look terrible, but worse than I thought.

 

[Merkava_4]

That's frightening. That's why I change my oil more often then I should.

 

[Pablo]

Originally Posted By: INTJ


And to be more accurate, there was a 35k oil in one run- Amsoil 0-30, and before the Eao type filters there were the SDF's. These you changed at 12.5k, so there was an added quart + another for top off for the years run..... some added TBN for 3 of the 5 oil changes.

I used their air filters with this.

Maybe this went south at my usage of the annual filter for other two runs, IDK.



One was 35K miles? Wow. And the 20K runs no filter changes? Thanks for posting. Some people will twist this into antiextended drains and anti-Amsoil, but really I get on the dealers - getting to know the customers uses is just as important as selling the product. Well just clean the engine up (the heads don't look so bad) and the valve covers can be cleaned more aggressively since they are off.

 

[The_Eric]

Doesn't look that bad to me. Go 10k and evaluate the oil from there, then work up to an acceptable oci.

 

[Trex101]

This really look nasty, do a quick 5k oci with PU, see if PU are able to clean this mess up.

 

[spasm3]

really not that bad, i've seen much worse sludge and varnish in the late 70's and early 80's engines.

 

[jmsjags]

the wear on the cams looks bad

but you should be able to clean up the varnish and deposits with a good synthetic on 5k OCIs

 

[SEMI_287]

That's not that bad. I'd say continue Amsoil for a few 7500 mile OCI and stick to 10-15k OCI.