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The great oil debate; A tale of two engines.
Topic Started: Dec 2 2012, 07:36 AM (1,810 Views)
Memphis metro


Heres two engines I recently worked on. The first is a 4 cylinder engine in a nissan truck that had just barely tripped 100000 miles. Not exactly sure what kind of oils were used over that 100000 but I know the last few years a widow woman drove it and very few oil changes if any. Her husband run a construction company and he likely used whatever was around when he needed oil.
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The second was a 4 cylinder engine in a toyota truck. This engine has over 200000 miles and I know its previous owner well. He only used mobile one synthetic in it. While the varnish is there it basically was really clean and had no formations built up on the rockers like the nissans did. This engine runs like a new one and has no smoke whatsoever out the pipe. Say all this to say this, if you really care about your engine then a good quality synthetic oil will likely carry you further but its going to cost you. Synthetic oil does not come cheap.

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PTA2PTB
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I'm totally awesome! I swear.

A tale of two engines.

"It was the best of oils, it was the worst of oils,..."
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68custom


while I do agree that synthetic oils are better I know you can get a lot of miles out of a properly maintained engine using dyno oil. having said this my new civic is running synthetic.
also good Dickens reference!
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dayle1960
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Fastest Hampster EVER

I don't mind the cost of synthetic oil, it's having to replace seals because the oil leaks past them once the seals get weaned off the dino oil. It costs more to run syn. oil in the short term, but if you use syn. oil over the lifetime of the engine, I bet it would be cheaper.

Good pics, Blue Rhino.
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Coche Blanco
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dayle1960
Dec 2 2012, 04:42 PM
I don't mind the cost of synthetic oil, it's having to replace seals because the oil leaks past them once the seals get weaned off the dino oil.
This doesn't happen anymore.
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me2


Why are synthetic oils better? I have a truck , bought new. run on non-synthetics for almost 500 thousand miles. Still a good truck. Worked very hard pulling a trailer.

Give me science or maybe an anecdote like mine that is superior for synthetics. Do you even know what a synthetic oil is without looking it up? If you have to look it up please state so in your response. It means you didn't know.
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Coche Blanco
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me2
Dec 2 2012, 05:01 PM
Why are synthetic oils better? I have a truck , bought new. run on non-synthetics for almost 500 thousand miles. Still a good truck. Worked very hard pulling a trailer.

Give me science or maybe an anecdote like mine that is superior for synthetics. Do you even know what a synthetic oil is without looking it up? If you have to look it up please state so in your response. It means you didn't know.
It is your money. Spend it as you wish.
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Memphis metro


me2
Dec 2 2012, 05:01 PM
Why are synthetic oils better? I have a truck , bought new. run on non-synthetics for almost 500 thousand miles. Still a good truck. Worked very hard pulling a trailer.

Give me science or maybe an anecdote like mine that is superior for synthetics. Do you even know what a synthetic oil is without looking it up? If you have to look it up please state so in your response. It means you didn't know.
I personally have never run synthetic oil. I just show you two engines and one that has twice the miles and more than the other and show you the results. I know the man that had the one with synthetic in it changed it but not on a regular schedule and only peridocially. I worked for a truck line that never changed oil in their trucks that run synthetic and only added to it when it was low. They put several million miles on their trucks. I cant give you facts concerning both oils because I just plain dont know. I can give you what I have seen.
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68custom


me2
Dec 2 2012, 05:01 PM
Why are synthetic oils better? I have a truck , bought new. run on non-synthetics for almost 500 thousand miles. Still a good truck. Worked very hard pulling a trailer.

Give me science or maybe an anecdote like mine that is superior for synthetics. Do you even know what a synthetic oil is without looking it up? If you have to look it up please state so in your response. It means you didn't know.
you could always look it up, there is this valuable resource called the internet. maybe you have heard of it? :-/ :-/
Edited by 68custom, Dec 2 2012, 05:13 PM.
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Johnny Mullet
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Fear the Mullet

I have torn down many-a-metro and I can also see the difference when using synthetic over dino oil.
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HelterSkelter
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me2
Dec 2 2012, 05:01 PM
Why are synthetic oils better? I have a truck , bought new. run on non-synthetics for almost 500 thousand miles. Still a good truck. Worked very hard pulling a trailer.

Give me science or maybe an anecdote like mine that is superior for synthetics. Do you even know what a synthetic oil is without looking it up? If you have to look it up please state so in your response. It means you didn't know.


synthetic is oil that has been chemically changed to have desirable properties, conventional is just refined crude oil. the synthetic is superior because they have engineered it to have the properties and traits that it needs to have while the conventional at best can have additives to try and give it these properties, but it will still not perform as well.

i run mobil 1 highmileage 10w30 in my geo and amsoil dominator 10w30 in my miata, always synthetic oil for me.
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JellyBeanDriver


None of my cars look like that Nissan in your picture. That isn't a story about synthetic vs dino, it's about never changing your oil.
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Murf 59
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In the way back, I worked in a wrecking yard tearing down engines for scrap parts all day. You could tell who was changing their oil, and who was not. The engines who were maintained, we easy. The oil galleys were nice and open. The engines that were just ignored, has oil galleys that were plugged up with a black wax like crap. You had to chip around the head bolts just to find them. And this was before syn. oil.
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Memphis metro


I stated I did not know for sure what kind of oil was used in the nissan but I really dont believe it was synthetic. I know the toyota was mobile one and I know it too was not changed near as often as it should have been or regularly but it did get a oil change occasionally. I do fully agree its all in regular oil changes.
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mikee66
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Purchased a nissan with a 2.4l engine that sledged at 80K and had only been to the dealer for maintenance. Sludge clogged the oil line to the chain tensioner and the chain skipped. Desludged with seafoam and reindexed the chain. now at 100K and no problems with the engine.

That Nissan engine is sensitive and tends to get buildup no matter what the oil
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