Author Topic: Oil  (Read 666 times)

Offline a10gf

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Re: Oil
« Reply #15 on: 25.01. 2019 18:55 »
morris... look what you have done! *lol*

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Online muskrat

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Re: Oil
« Reply #16 on: 25.01. 2019 19:29 »
Thanks for that info worntorn (I see that name there).
So it looks like Royal Purple HPS 20/50 gets the nod for me but at triple the cost of Penrite.
Any oil with a ZDDP content over 1200ppm is good for our old bangers.
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Online morris

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Re: Oil
« Reply #17 on: 25.01. 2019 20:00 »
morris... look what you have done! *lol*
Sorry...  *roll* *sad*
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Online Triton Thrasher

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Re: Oil
« Reply #18 on: 25.01. 2019 22:23 »
New improved Oilo for me, the World’s first straight multigrade.

It’s got zinc literally coming out of its ears.

Offline worntorn

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Re: Oil
« Reply #19 on: 25.01. 2019 22:35 »
BelRay EXP 20/50 4tsemi synthetic is almost as highly ranked as the Royal Purple HPS and is pretty reasonable here in Canada, about 30 GBP for 4 litres.
I have been using Valvoline VR1, which tested well, however the BelRay tested better and costs the same.
These are both detergent oils as are most of those tested.
For those who do not want detergent oil for the reasons mentioned earlier, there are some non-detergent oils that tested well.
Only trouble is, they are not separated out in the listings
Redline Racing oil was one.
Other detergent type Redline oils did not test well, in spite of their expensive price tags.
Extra high zddp also was not found to be a benefit.
One of the Redline oils that failed under low pressure had 2200 ppm Zddp.
It seems somewhere around 1200 is a good number for Zddp.

Interesting note, when Jim Comstock was doing all of this testing and found great results with the low cost BelRay, he called them to find out how the oil was made.
In the discussion, and not knowing Jim was the Accessnorton oil tester, they suggested he have a look at the Accessnorton forum as there was a member there doing very involved and accurate oil testing.  *smile*



Glen

Online Black Sheep

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Re: Oil
« Reply #20 on: 26.01. 2019 14:27 »
The resident oil expert on the Norton Owners forum was unimpressed with these tests. He tests oils for a living and really should know. Just to stir things up, he generally favours synthetics, even for our old machines.
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Offline worntorn

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Re: Oil
« Reply #21 on: 26.01. 2019 16:22 »
The resident oil expert on the Norton Owners forum was unimpressed with these tests. He tests oils for a living and really should know. Just to stir things up, he generally favours synthetics, even for our old machines.

You'll have to do better than that.
It's not really an oil thread until the word "idiot" is used :)

Glen

Online Triton Thrasher

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Re: Oil
« Reply #22 on: 26.01. 2019 17:18 »
he generally favours synthetics, even for our old machines.

Synthetic oil was not developed to provide worse engine lubrication, to be fair.

Online RDfella

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Re: Oil
« Reply #23 on: 26.01. 2019 18:18 »
Brian - you say you've never seen an engine damaged through using the wrong oil. Dunno what egines you've worked on, but I've seen several. Worst case was a boat engine which went bang just an hour after the owner put in the latest high-detergent oil. Result was that it started consuming oil at an alarming rate (emptied the sump in an hour) and then it was goodbye engine. I fitted a new one for him, and remember a boat engine producing several hundred horsepower runs into thousands. Many other examples if you want, including a rare vintage engine running its bearings.
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Re: Oil
« Reply #24 on: 26.01. 2019 18:23 »
Way back, my father put steam locomotive superheater oil in his 680cc Zenith. His Dad was an engine driver and had liberated a gallon from the shed. The Zenith managed 30 miles before running the big ends. Being 30 miles from home and now without transport, he accepted a local dealer's straight swap of a side valve 350cc AJS for it. I bet it took him a bit longer to get home on that...
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Online Triton Thrasher

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Re: Oil
« Reply #25 on: 26.01. 2019 19:22 »
Way back, my father put steam locomotive superheater oil in his 680cc Zenith. His Dad was an engine driver and had liberated a gallon from the shed. The Zenith managed 30 miles before running the big ends.

Does a superheater have moving parts needing oil?

Steam cylinder oil can have a viscosity index of 1,000 and would be most unsuitable for for a petrol engine.

Offline Tomcat

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Re: Oil
« Reply #26 on: 27.01. 2019 02:16 »
The resident oil expert on the Norton Owners forum was unimpressed with these tests. He tests oils for a living and really should know. Just to stir things up, he generally favours synthetics, even for our old machines.

You'll have to do better than that.
It's not really an oil thread until the word "idiot" is used :)

Glen







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Offline kiwipom

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Re: Oil
« Reply #27 on: 27.01. 2019 06:06 »
Hi guys seeing that we are talking Oil, here is some advice from the 60s , cheers
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Online mikeb

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Re: Oil
« Reply #28 on: 27.01. 2019 07:08 »
golly, Kiwi, maybe i should try that! would it affect my green party membership?
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Re: Oil
« Reply #29 on: 27.01. 2019 07:09 »
The superheater doesn't need oil of course but oil for a superheated steam engine had different requirements from an engine using saturated steam. So it's down to terminology. I was really referring to oil for superheated steam locomotive cylinders. Still not suitable for 680cc Zeniths though. The bike cost him £3 in 1928 when he was 14. Hate to think what they fetch now.   
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