If you use fuel with ethanol you need a stabilizer that also counters the effects of ethanol. It should say on the bottle. Ethanol is a big problem for small gas engine and marine. In my area Shell premium 91 with no ethanol is available. My 6 mostly gets this and all my small gas engines. Cheers Bruce Simms<br><br><div id="ymail_android_signature"><a id="ymail_android_signature_link" href="https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature">Sent from Yahoo Mail on Android</a></div>