4 Stroke Strimmer?

[Mursal]

Anyone know anything about the relatively new garden strimmers that don't require oil in the fuel?
http://bit.ly/1bBKnGe

Has the engine oil in the sump or are the bearings preloaded with grease?

Will it rev high enough to be as good as the 2 stroke engine it seems to be replacing, probably because of even tighter EU emission regulations

The only thing, it should be an easy starter?

 

[HERTS P&D]

They have oil in the engine, unlike 2 stroke engines.

Honda strimmers have been doing it for a while.

Andy

 

[Burnerman]

Two main types really.....the Honda 4 stroke strimmer is a wet sump engine with no oil pump.....there's so much oil in there that splash lube seems to be fine.
The Stihl 4 Mix engine is actually a four stroke engine with no lube in the sump...lubrication is by a conventional mixture (50:1 fully synthetic) and its so designed that oil mist gets to all of the moving bits.....well clever and I haven't had a failure yet!
Both of these machines are willing starters....the Honda has a manual choke that presets the idling speed, and the Stihl has a conventional choke and a throttle trigger that locks on full for starting. Both have fuel primer buttons.
John