Honda ST1300 Section > Fuel & Additives ST1300

98 RON bad for ST's?

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CallMeSteve:
I just got off the phone to the service dept at Brisbane Motorcycles.

I mentioned an intermittent problem with STrudel idling very badly when cold and she asked what fuel I use.  To my surprise she said to stay away from 98 and stick with 95.  "Too many additives" she said. Apparently they had a lot of trouble with several makes of bikes (most notably Ducatis she said) which gave no end of trouble until they drained the tanks of 98 and replaced with 95.

I must admit that being a 'purist' I most often spoil STrudel with 98. So I'll switch back to 95 and see if it helps with my morning idling problem.

I'm just wondering if anyone else has experience on this topic?

Brock:
When I first collected my bike, I ran a spread sheet to record fuel usage amongst other things. The result was that plain unleaded was just as good as the higher rated fuels, just cost less. There was no advantage to to paying more, as the economy was the same as was the running/power.

My bike is now just short of 200000Ks from a starting 35000 Ks

alans1100:
I use mainly ULP (91) in the 1100 but if I happen to be filling where E10 is available I'll use that. Cheaper than ULP but the same as PULP (95).

The 1300 mostly gets a mix of both ULP and PULP depending on when I fill her. During the week I can get PULP at the tyre dealer (with 4c discount) but on weekends it's either ULP or 98 (Vortex???) at the Caltex. And again E10 if I happen to be at a place that sells it. Also have had two 98 top ups when 95 wasn't available.

Ride to the city last Friday had me filling with 91 from the tyre dealer because the 95 pump was down and for the trip back home I used 95.

Never had an issue with any fuel anywhere on either bike.

ruSTynutz:
I'll be sticking with 95 ULP in my ST1300... ++

Also there's no way I'd be putting BP 91 ULP in my bike as it can contain up to 10% Ethanol!  :-(((

Here are a few links to interesting articles concerning different fuels...

https://www.fcai.com.au/environment/can-my-vehicle-operate-on-ethanol-blend-petrol

https://motorbikewriter.com/is-ethanol-suitable-for-motorcycles/

https://www.roadrider.com.au/the-fuel-truth/

 :13Candy

Biggles:
I have always used 91 in my four STs with nary a problem.  Last month the valves and plugs checked out with no problems after 126,000 kays.  Over the life of this bike I have averaged 5.31 l/100km.  I have used E10 when there was no 91 (common among NSW Caltex and BP servos that I've used) with no problems, noting the E10 is rated at 94 RON.  I had never used E10 until recently having heard stories about seals being damaged, but figure a diluted tankful occasionally wouldn't be an issue.

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