Ric
Lawn Pro
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- May 7, 2010
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Stihl BR600 is it not a 4 stroke engine but uses 2 cycle gas mix as there is no separate oil.
The BR 430, 500, 550 and 600 is what Stihl calls a 4 mix engine, which is a single cylinder Four-stroke engine with gas-oil lubrication. it runs off a 50 to 1 mixture there is no separate oil reservoir or crankcase for added weight. I believe all there hand held units are 4 mix except the FS94. look in the manual.
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