Twin Oil Consumption - What's Yours?

[Bill Thomas]

Hello Robert, Any chance you can give us details of pistons and rings, Also Piston clearance, I have some old barrels that after some hard riding have gone way out of shape !! So much so that I am afraid of the new type low clearance pistons, I only use 60 year old specialoids with 10 thou clearance. We met a long time ago at the late Bill Telfers house, Cheers Bill.

 

[Albervin]

On fairly short rides at moderate speeds then about 800 miles per pint. At higher speeds on longer rides (say 300-400 mile) then 600 miles per pint. The Rider's Handbook states 1500 miles per gallon.

 

[Len Matthews]

The change to low expansion pistons made a world of difference to my bike. Oil consumption is negligable. One tip: If your bike is used infrequently and has a sumping problem,always top up the oil as soon as you get home after a run, not after it's stood idle for long periods. The result can be very messy!

 

[Alan J]

Even with "a chair" on I manage about 500 to the pint [no "litres" here!] My engine is nothing special

 

[Howard]

On fairly short rides at moderate speeds then about 800 miles per pint. At higher speeds on longer rides (say 300-400 mile) then 600 miles per pint. The Rider's Handbook states 1500 miles per gallon.

I never understood that 1500 mpg. I assumed it included oil changes. In the days when I went to Spain, I only took a small (pint?) bottle, and don't remember buying much (if any) during the trip. By that reckoning I should have used about 13 pints during the trip.

This has got me thinking - I'm going to dip the oil and check over 1000 miles. (I'll do it after a run, Len).

H

 

[Alan J]

I never understood that 1500 mpg. I assumed it included oil changes. In the days when I went to Spain, I only took a small (pint?) bottle, and don't remember buying much (if any) during the trip. By that reckoning I should have used about 13 pints during the trip.

This has got me thinking - I'm going to dip the oil and check over 1000 miles. (I'll do it after a run, Len).

H

Yup, the handbook only reckons about 200 to 250 miles per pint [about half a litre for our continental friends] so 8 pints = 1 gallon, so no more than 2000 miles to the good old Imperial gallon-must have been terrible oil then!-I am, of course, too young to remember!

 

[ogrilp400]

1000 miles, .8 of a pint. Twin start pump and standard breather.