Rocket engine oil

Nope, never. But still the oil I use is the best oil!
 
So it makes sense to dump $$$$$ oil early or $ oil early? I use Castrol Power 1 5w-40 in my Rocket and my wife's Spyder and like it well enough. I use Rotella in my V-Strom and Cross Country.
 
I do not see many talking about the Castrol that Triumph specs, why do many use other oils? Is the Castrol oil not very good?
 

Exactly my experience with T6, it's very thin. I only use it for first fill after a rebuild, like I just did this year, because it's cheap.


Every wonder why some guys burn clutch friction plates but others hold 190-250 lb-ft on stock plates with zero issue, have oil seal problems (valve seals, etc), and associated internal engine wear problems yet others don't have issues at all? I'm not saying it's solely because of oil, but it is absolutely a contributing factor.

Ralsmith said:
I do not see many talking about the Castrol that Triumph specs, why do many use other oils? Is the Castrol oil not very good?
Click to expand...

One of castrol's full synthetics actually tested right up there with the very best oil on the market on Bob is the Oil guy. I cannot recall which one, but I do recall it is NOT the one Triumph uses.
 
Last edited:
Ralsmith said:
I do not see many talking about the Castrol that Triumph specs, why do many use other oils? Is the Castrol oil not very good?
Click to expand...
Truimph back in the dark ages was sponsored by mobil. Matter of fact the packaging even said truimph.
 

People on the Vic sites have clutch slippage with Amsoil, others don't.

My Uncle had a 1968 Ford Galaxy 500 with a 390ci that ran 300,000 miles+ using Quaker State in the 1970's others cuss that oil.

So many variables. Some "Ride it like you stole it" and others like me, ride them like I paid a lot of money for them.

I Agree 100% oil is a contributing factor!!
 

A bit over 5000 miles on my '06 since I bought it 18 months ago and first changed oil with Mobil 1 Racing 4T. Maybe changing again now to the same oil is a waste of money but I will because it gives me piece of mind. Anyway, thanks for your analysis Claviger, gives me additional piece of mind.

PS Also nice to get confirmation that the 180 F temp max I see on my gauge is the norm, thanks again.
 
I use the Castrol 4T synthetic 10/50 Triumph says to use. I used the Mobil 1 15/50 they used before switching to Castrol. Bikes run great no transmission problems. 46,000 miles still have original clutch and I go to drag strip 4 times per year for the last 3 years.
 
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