Why pay for UOA's or synthetic oils.

[StevieC]

Originally Posted By: 5sfe91
No sludge in my Toyota Celica and its seen nothing but dino until this last oil change, and i have pictures to prove it.
I wanna see..

 

[Avgas]

I'm not calling out Celica's please don't derail this...

 

[apwillard1986]

I don't think anyone here has ever argued that any modern oil and quality filter changed at a reasonable OCI will not protect a modern engine for a longtime so long as it meets said engines requirements.

My comment was meant as a joke in that your post started as a treatise on why the primary subject of the forum was a supreme waste of resources which you then flanked with a domestic car jab. I meant no offense at all.

 

[tenderloin]

..

 

[JHZR2]

Because conventional oils amongst others really are relaint on the chemistry doing its job to last that long. Synthetics have their own issues.

Case in point... Trying to run VW 504 rated low SAPS oil in my wife's VW rabbit. Should be able to do 10k mile OCIs on syn in that car. Wear rates are low, oil holds up to the 5000 mile point, but past that the TBN goes to 1.

If I hadnt done UOA and just assumed all was well, the wear rates could be far higher...

 

[Avgas]

Originally Posted By: tenderloin
Originally Posted By: Avgas
I'm not calling out Celica's please don't derail this...


In my opinion you derailed your own thread by posting you use a oil additive on another thread and for whatever reason leaving that information off this thread. Trolling?


Correct, I didn't feel that the MMO running costs of $0.75 a fillup were relevant to this thread.

 

[dparm]

This is so inflammatory. As a new member, if you were curious about used oil analysis, you certainly have a weird way of asking to learn more.

Good: "I can't justify the cost of a used oil analysis when I've used cheap oil for 5,000 miles in all my cars and never had a failure."

Bad: "used oil analysis are a waste and you guys are all weird."

 

[apwillard1986]

Spot on

 

[dave123]

Originally Posted By: Avgas
I'm not calling out Celica's please don't derail this...

We wouldn't want to derail this you would miss your 15 minutes of fame you will only get one shot at it.

For the rest of you I hope you don't take the bait.

 

[daman]

Originally Posted By: StevieC
Originally Posted By: 5sfe91
No sludge in my Toyota Celica and its seen nothing but dino until this last oil change, and i have pictures to prove it.
I wanna see..

Running Pennzoil conventional since new @ 15k OCI's? you got varnish,sludge whatever i don't care what pics you post up.

 

[Avgas]

Not new, used. I have pics let me see how to link them.

 

[HTSS_TR]

Using conventional oil in a Mercedes with FFS(Mercedes Oil Life Monitor) designed with Synthetic oil caused SLUDGE in early 2000's. Mercedes Benz settled a class action lawsuit at a cost of $32 million.

http://www.legalnewswatch.com/185/judge-approves-settlement-worth-32m-in-mercedes-benz-case

Conventional oil such as Pennzoil Conventional can be used in almost any engine for an OCI of 5-6k miles or a little more, but 15k miles is asking for problems. I would not use any conventional oil in any of my cars for more than 7-8k miles, and I will not recommend anyone to use it longer than that. With synthetic oil, I'm comfortable with an OCI up to 12-15k miles or 1 year.

If you want to use conventional oil, Pennzoil Conventional or other brands, in your car for 15k miles, go ahead and good luck to you.

 

[40Deluxe]

Draining out used oil and putting in new synthetic mobil 1 is a mentally pleasing experience.For every person like me that changes oil too often and spends too much money doing it,there are thousands that are just opposite so somewhere in there a balance is struck.

 

[apwillard1986]

^^Agreed^^
We had a guy come into the shop with his car (not a domestic) and complained it ran funny. Pulled the plug and... nothing. Dropped the pan and cut the old oil like a sheet of brownies. 20K miles on the factory fill.

Point is, I wouldn't doubt you could run any oil for 15K. I would however doubt the condition of it and its ability to do what it was designed to do once its over. Especially with no data in support.

It is an irony however, had the OP posted a used oil analysis and said here is my 250K mile Honda B18 on 15K OCI with Pennzoil Conventional and it were stellar this thread would be popular for different reasons. He'd be a hero!

 

[Avgas]

Ok here are shots with valve cover off. I didn't run 15k every time, that was longest, worst case scenario a few times but average was probably 10k.



Uploaded with ImageShack.us


Uploaded with ImageShack.us

 

[yeti]

avgas -- "... modern engines will 'outlast the frame' by 500 k miles on regular conventional oil".modern cars' "frames" will easily last 10 years-- and engines last 500 k.beyond that ? would you mind naming some of these engines, please ? i would like one.thank you, and have a good night.
i see that you've been a member for 2 days.welcome.

 

[CBR.worm]

That looks pretty dirty to me.

I have over 100k and my valve train looks like it just came out of the factory, nice bright silver.

 

[Avgas]

There are million mile Civics out there with no engine work done and a new gen Toyota Yaris with 400k on the Yarisworld forums, they are very common just look around.

 

[Avgas]

Originally Posted By: CBR.worm
That looks pretty dirty to me.

I have over 100k and my valve train looks like it just came out of the factory, nice bright silver.



Congrats but I'm guessing that cost you a pretty penny in high end oils. Mine did not, it runs like a top and all you see is a healthy layer of varnish. Yours is better, but is better necessary here? That's my point.

 

[StevieC]

I have 200K miles (over 300K KM's) on my engine with synthetic for 99% of its life and I can't wait for me to have a need to remove a valve cover so I can take pictures.

Darn thing isn't leaking yet...

My goal is 500K KM's (300K miles)... If it hasn't leaked at that point I will just pop off a valve cover because I won't be able to wait any longer...

I imagine it will look like factory clean inside.