Castrol Classic 20w-50 Engine oil

Richard Tool said:
Several marina owners and their experienced mechanics would
disagree - perhaps things were different in your experience - I certainly have no reason to doubt you . One notable failure that was reported to me was camshaft failure. I am only passing on what others have told me and the results of my own test , however unscientific and amateur it may have been .
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I never discuss motorcycles with marina owners.
 
I lived on a boat/did mech work on them in a marina for 11 years and don't recall any issues/talk about synthetic oil not protecting as well as conventional oil. Many gas-powered boats in the marina used syn oil. OTOH, most (actually, ALL from what I recall) of the diesel boat owners used conventional oil - primarily due to cost. A boat with a pair of fair-sized diesels required 8-10 GALLONS of oil per engine! :eek:
 
Did you hear of the Texan talking to a grazier from Oz?
He said, "Why, it takes me nearly 2 days to drive all around the boundary of my ranch!"
The Aussie farmer replied, "Yeah, I used to have a ute like that!" (Ute is Oz name for "pickup")
 
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DennisMo said:
Hello Ashman,\

Questions about using STP in your engine oil!

1) Does it thicken oil to the point you have higher oil pressure at very hot oil temperatures (I don't know if you have a pressure gauge)
2) What ratio of STP to oil do you use and how did you decide on the ratio?

My first job was at a gas station where some customers asked for STP with their top up oil. Oil came out of a can whose top one pierced and
we marvelled when customers could pay with a credit card using the handheld technology that wiped back and forth to get an impression of the card

Dennis
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Dennis,
I also worked at a gas station probably around the same time with the credit card in the sliding machine.Your comment made me smile.
Mike
 
baz said:
I own a rocket 3 like that!
Doesn't or leak too badly but it uses an astonishing amount of oil whereas my t160 uses very little 🤔🤔🤔🤔
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My first Trident a T150v supped oil at alarming rates but my buddies T160 takes the cigar, it was doing 50 miles to a pint by the time it got it's first rebore ( at 50, 000 miles though) It went straight to +40 bore . It was like riding behind 3 x H2 Kawasakis but without the nice smell !
 
Perils of a long stroke engine that needs to run at 5 grand to remove the feeling that the bike was too heavy.
Yes it goes if you rev it but so does the TBO.
Trident is a nice bike but why o why did they not make it an 900 right out of the box?
Because they had three months to go from drawing to production and if it was on the shelf
the used it. And so it was that the 250 BSA rod was grabbed not a shorter stroke unit.
...and that was just the beginning. Sigh.
 
trident sam said:
My first Trident a T150v supped oil at alarming rates but my buddies T160 takes the cigar, it was doing 50 miles to a pint by the time it got it's first rebore ( at 50, 000 miles though) It went straight to +40 bore . It was like riding behind 3 x H2 Kawasakis but without the nice smell !
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I've never checked mine exactly but I'm guessing around a 100 miles per pint 😳😳😳but without the smoke as far as I've noticed
(Sorry for thread derailment to original poster )
 
You can smell a Trident coming before you hear it 😂

I recall they had an issue with the cylinder liners going out of round in a cloverleaf style either during manufacture or assembly?
A rebore seemed to be the cure, but not for that tappet jangle!
I also apologise for shamelessly continuing the thread derailment 🥺
 
B+Bogus said:
You can smell a Trident coming before you hear it 😂

I recall they had an issue with the cylinder liners going out of round in a cloverleaf style either during manufacture or assembly?
A rebore seemed to be the cure, but not for that tappet jangle!
I also apologise for shamelessly continuing the thread derailment 🥺
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yes there was problems with the bores along with many other things, however a good one is a great bike. I sometimes think that if I'd bought a big Honda instead of a Trident my life would have certainly been less complicated, but not nearly as interesting, however there's no chance of the swimming pool in the garden now........
 
You better edit that post right sharpish....if the old lady gets here hands on that Admission of Guilt you are
doomed....
 
Onder said:
And so it was that the 250 BSA rod was grabbed not a shorter stroke unit.
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In the B25's defence it inherited its con rod from Triumph's 500 Unit Twin and every upgrade the 500 got then so did the B25, and there were a lot of upgrades. Drilling an extra hole in the side was a self inflicted error not copied by the 500's.
 
Onder said:
Perils of a long stroke engine that needs to run at 5 grand to remove the feeling that the bike was too heavy.
Yes it goes if you rev it but so does the TBO.
Trident is a nice bike but why o why did they not make it an 900 right out of the box?
Because they had three months to go from drawing to production and if it was on the shelf
the used it. And so it was that the 250 BSA rod was grabbed not a shorter stroke unit.
...and that was just the beginning. Sigh.
Click to expand...
The Trident was originally designed in1964. The Powers that Be at the time (Umberslade Hall) paused the project so a company named Ogle could redesign it. As a result, the Rocket 3 (the BSA version of the redesign) didn't come out until 1968, at about the same time as the Honda 750, and got slaughtered in the marketplace.
 
I wonder if the engineer is a newbie with no real experience or knowledge with old bikes. Most guys our age have left the engineering office. In fact most have left the planet.
 
nortonmargie said:
The Trident was originally designed in1964. The Powers that Be at the time (Umberslade Hall) paused the project so a company named Ogle could redesign it. As a result, the Rocket 3 (the BSA version of the redesign) didn't come out until 1968, at about the same time as the Honda 750, and got slaughtered in the marketplace.
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Ogle had nothing to do with mechanical design. Umberslade Hall came along later as well. To be fair a lot of the Tridents problems were with quality control. The bike we got was not what Hele intended. And once it came out too much time and money went to the race program and not to street bike development and issues.
 


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