Honda ST1100 Section > Oils, Oil Filters & Servicing ST1100

What oil do ya throw in ya steed?

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Diesel:
For me it's the Castrol Power 1 Racing 4T (10W-40).

Now it all depends on your climate as to What-W What you use - but I'll be changing brands next time. It seems a little clunky and rattly this oil.

I had a fair bit of success with turbo-rated diesel oil (go ahead! laugh!). It has what they call a great 'crush' value, which means that when it is wrung through the gears, it doesn't break down as much. Some oils are no good after only 1,500kms!

This guy is the oil guru - he'll tell you all about 'em:
http://motorcycleinfo.calsci.com/Consumables.html#Oil

And here is a REALLY detailed link on oil for you retired folks with heaps of time on your hands.... (okay, okay - I've read it too!):
http://motorcycleinfo.calsci.com/Oils1.html


Whatever you use - you KNOW it cannot contain friction modifiers don't you (wet clutch!)

Got a good oil? Don't forget to make it obvious whether you're an 11 or 13 pilot too!    ;)

Cheers, Diesel - ST1300

saaz:
ST1100 here!

I have found the 15W-40 diesel rated oils really good for the standard Honda change interval (I trie a 10W-40 and it did not stand up as well as the 15W-40 - gearbox felt more clunky).  Just make sure it has the petrol engine ratings on it (SN, SM etc) as the oils used in japanese diesles are not suitable for petrol engines. Ones for Detroit diesels are ok (even Sunshine Coast Diesels!)  The synthetic versions of these oils you may have read about are also great, but way too expensive in Australia.

Of late I have been using castrol Edge 10W-60, winter (Canberra winter) and summer.  Easily lasts the Honda 12,500kms oil change interval and beyond.  More expensive than the diesel oils (well double if you buy the 20 litre drums of diesel oil), but I have a stock of it as I use it in the car as well (5.7 litre V8 Statesman).

rendog:
When I repaired the waterpump I also checked the plugs and looked at the piston tops.
There was a tad of black crunchy goop there, so I've upped my oil to 20W-50.
I've also gone back to the mineral based oil as it burns easier. (Motul 1000)
Might be time for some valve stem seals. Hmmm.

A side effect of the thicker oil is it starts quicker.
The ST1300 will not fire until the ECU registers oil pressure.  ;)

Brock:
I use Valvoline 20W50 at the moment, it seems to do the job. It doesnt get cold enough in the West of Oz to need a 10 weight oil

Rodd:
I think that I put in the same oil as you, Diesel. My ST1100 is usually clunky and I don't like it.
It shifts better in cold weather than it does when it's warm!

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