Modern Oils

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comnoz said:
I know my Mercedes 320 gas calls for oil changes at 10 to 12,000 miles.
If you don't replace the oil filter at around 6000 miles it will collapse.
At 9 to 10,000 miles the valve train starts sounding like shit. I just change the oil and filter at 6000 any more. Jim
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+1
The engine in my diesel pickup uses engine oil to make injection pressure. The recommended change interval is 15,000 kms(big oil volume). Somewhere around that mileage it will start to idle rough as the injectors no longer get full pressure with the degraded engine oil. Change the oil and everything goes smooth again for 15,000 kms or so. The manufacturer has made it clear that running the dirty oil will destroy the injectors, among other things.
Leaving the dirty oil in is not cost effective, new injectors are about 2k$, an oil change is about $75.

Given the high cost to rebuild a worn out Norton engine and the puny amount to change it's oil, it's doesn't make a lot of sense to see how long it will run with tar in there. Same for any vehicle really.
Glen
 
Dereck, I'm confused [sushup] on your diesel mechanics findings that just proper oil corrected, what was corrected and what was first oil that let him down and the oil that did the trick. I've been steeped my so many people over couple Brit Iron decades plus my own background so fairly up on what matter or not and what does what in oil. I think detergent in our engine is good idea especially on first run ins then changed before leaving home. There are tricks to learn too on how seemingly objective lab tests can be fudge by operator. My mine concern with oil is keep rpm up enough to surf on it, thicker better for slower then then also for the extreme racing use. Rottella is my staple bought in same area as universal farmer fluid. If oil filter collapsing before a few oil changes then something is wrong with filter, the oil or the engine. OIl and its additives are not as effective till oil it broke in some too so there some downside of always fresh oil inside but beat snot of of used up oil.
 
kerinorton said:
JimNH said:
OMG! Another oil thread full of hearsay, old wives tales, oil company reps, diesel mechanics, and Buddhist monks. Stop already; never start an oil thread on a forum. If you want to know anything check the oil company's website; it may actually have some facts.
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This site is a form of entertainment. If you don like it, turn the TV off.

I am not going to apologise for only knowing about this site this year, and not knowing what's been brought up before I starting looking.. I am not even going to apologise for not being able to surf this site for information I need, nor that fact that I find it difficult to post photos blah blah blah.

One of my bosses once said to me , " don't believe anything you hear, and believe only 1/2 you see, and you shouldn't make tooooo many mistakes ".

I think you could be nice and apologise for you comment here.

Dereck
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Dereck,

Having participated in forums dedicated to the various equipment I have owned and operated through the years including boats, farm tractors, construction equipment, cars, trucks, and of course motorcycles, the one subject that comes up on all and meanders all over the place is oil. Mixed in with some real good, thoughtful and maybe even accurate information is all manner of, at best, anecdotal information that simply does nothing but mislead.

Often the statements are as nebulous as "My brother in law cuts the lawn of a Mobile executive and he says..........". Something that can only be described as coincidental will be attributed to the type of oil - "I won the race when I changed to ..........." Really? I was able to pull that plow in 4th gear once I changed to ........." It goes on and on; you get the idea.

My plea to never start an oil thread was somewhat tongue in cheek so I won't be apologizing. I agree that it's entertaining but painfully so.

Let the thread continue!

Jim
 
It was so amazing when we went to Mexico and the smell of raw newly discovered blurping oil out of poor farmer's field . So much sudden excitement. Invasion of security and machinery hours afterwards. Has anyone actually smelled the smell of pure unrefined oil straight out of the ground Jed Clampette style ? Shootin' at food. I will never forget that smell. :|
 
I've smelled it in Texas, Oklahoma and Louisiana flavors and Jed Clampet is said to have shot some up here in Arkansas where water wells turn into gas wells and some water level taste like oil pans.
 
Having participated in forums dedicated to the various equipment I have owned and operated through the years including boats, farm tractors, construction equipment, cars, trucks, and of course motorcycles, the one subject that comes up on all and meanders all over the place is oil. Mixed in with some real good, thoughtful and maybe even accurate information is all manner of, at best, anecdotal information that simply does nothing but mislead.

Often the statements are as nebulous as "My brother in law cuts the lawn of a Mobile executive and he says..........". Something that can only be described as coincidental will be attributed to the type of oil - "I won the race when I changed to ..........." Really? I was able to pull that plow in 4th gear once I changed to ........." It goes on and on; you get the idea.

My plea to never start an oil thread was somewhat tongue in cheek so I won't be apologizing. I agree that it's entertaining but painfully so.

Let the thread continue!

Jim[/quote]
Best post winner ^^^^^^^^^^^^^^^^^^^^^^, So True!
But, I have heard, ( honest, I can't say when or where, only that " I once heard" ) That racers would avoid detergent oils because the 20% or so that was detergent, was NOT oil. They wanted just oil. Some thing to that reasoning? And engines got frequent oil changes anyway so no worry about sludge.
 
The problem is obviously the additives.

What we need are some subtractives to take them out and turn this dreadful modern oil into proper old oil.
 
ludwig said:
JimNH said:
My plea to never start an oil thread was somewhat tongue in cheek so I won't be apologizing. I agree that it's entertaining but painfully so.

Let the thread continue!
Jim
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An oil thread can be entertaining , but tends to run forever .
It is not Norton Commando specific , so should not be in the Commando section , but in '"Motorcycle related " or even better , in the pub....
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Oh how much simpler life was back then..... an owners club local meeting one evening a month in a pub......even the most 'interesting' discussions had to come to an end if not at the 'time bell' at least by the time the car/bike park emptied....we all had to go home.....now we are all at home....we could make this last weeks....

....ah well...no...I am not forced to read the thread...any more than I was forced to stay in the pub till closing time...... :lol: ....but at least by doing so I have learnt something about the proper care of my diesel trucks...without having to sign up to another forum.... :D
 
Oil analysis is great but it needs to be qualified by the condition of the engine it came out of. Analysis on a newly rebuilt engine with good compression and minimal blowby is going to look different than that of an engine with many miles on it. Sort of a chicken and egg situation. Big part of doing the analysis is to determine engine condition.
 
mikegray660 said:
time to chat about spark plugs!! :roll:
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Unfortunately for those of us who enjoy beating dead horses, our tire choices are limited. I'm guessing most Norton owners are running stock size 19" rims front and rear...not much choice. For those of us who need a fix on a completely different but equally volatile topic, check out any and all modern bike forums about "best tires for...?" The same style experts will gladly tell you why you need to run the tire they do, or be the fool. :mrgreen: Just ride your own machine and maintain it to the best of your ability. sometimes less is more. They are Nortons for crying out loud, not shuttle craft. :roll:
 
needing said:
1. Is the oil that you put in your Commando wrecking your engine, or
2. Is your Commando wrecking the oil you put in it,
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Both statements are true, but without oil your engine gets wrecked a lot faster. And if you aren't wrecking your motor you aren't using it. Remember the bad old days when these were just old bikes and parts were hard to find ?

Use 'em up. Wear 'em out. Rebuild them. Repeat.

Greg
 
Why am i reminded of this,

Modern Oils
 
To literally add some chemical heat that directly unrelated to anything about oil is oxidation issue comnoz article only half fast covered as only concerned with the hydrocarbon chain oxidation that is as exothermic as combustion but on such low slow scale not significant, but oxidation into the vulnerable metal grain interfaces is mostly what flakes off/pits polished friction surfaces that will never be seen as rust but another source of friction size particles that regular filters pass like birds through a fence, though less oxidized hydrocarbon free radials plus anti-oxidant additives go a long ways to prevent this chemical etching type wear. This takes us back to the inedible engine mayonnaise suspended moisture issue, happening on such local small scale its not seen as lasting mayonnaise but only takes a micro instant which is ages to electron and photon transfers at the base of rusting to combustion oxidation people to power units.

https://www.google.com/?gws_rd=ssl#q=ox ... aring+wear

Modern Oils
 
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