Thanks everyone for these comments. Helped put my mind at rest and pleased to know that I shouldn't have a consequent problem on my trips to Spain and France in May & June.
I know that it was a litre - at least - as the technician who drained it out to the full dipstick line retained it in a bucket.
Sorry really only 150 miles over winter partly due to the December floods and aftermath. It's been a bit rugged up here. However the weather's good now and it's a trip to the pub at Wastewater tomorrow. I usually manage 5000 miles a year all purely leisure.
