Forum

[apparently lucky eddie]

I had an early 70's 4.2 XJ6 with 130,000 on the clock that had its own blue smokescreen and was as incontinent as a 90 year old granny and it never used 3 litres per 1,000 miles. I've certainly never had an Enfield that needed that much oil, if I did it would've been dumped in the nearest hedge. More than a teaspoon or so per thousand would be a scrapper to me.

[Bullet Whisperer]

I thrash my early 90's 350 everywhere and it seldom needs topping up between oil changes [which are about every 1500 miles]. It has a Meteor Minor Sports piston, with decent, Hepolite rings. There are no seals on the standard, well used valves and guides. I also think it has a cork end feed seal, but it is so long since I have looked in there, I can't remember for sure. Nothing except a faint mist comes out of the breather and I would describe the oil consumption as 'negligible'. I have stripped some engines which have not been using oil heavily and found heavy wear in the valve guides, so, I believe piston rings to be the main culprit when a Bullet uses oil, assuming the oiling and breathing systems are working as they should.

[John R]

I used to drive a Wartburg; the engine was closely derived from a Scott stroker triple that never went into full production. A remarkable engine in some ways, but it was unsurpassed in smokiness.

[Presto]

I’d have thought in a pre-mix type two stroke engine any excessive smoke is the result of the oil mix not the engine itself – too much oil or the wrong type of oil. At least that's been my experience with my strokers.

[PeteF]

Back then 2 strokes needed a LOT more oil than they do today.
I had a Seagull outboard that asked for 10/1

[Presto]

Wartburg's used 50:1 I believe.