Oil viscosity will only affect starting if it is to heavy for the ambient temps . Over 45 deg f you should not notice any issue with starting with straight 30 .

FWIW, I went to 5-30 synthetic a lot of years ago in all my small engines and have nothing but good things to say about doing it. Also went to a synthetic two cycle, forget "ratios" and the PITA to try to keep different gas cans for different engines. One plastic "packet" added to a gallon of gas and the engines run great, irrespective of Mfg's recommendations. Have been doing both of these for years with a lot of small engines around the farm. JMHO.

Anybody old enough to remember when you bought a quart of 30W oil, filled the oiler on the chain saw and then mixed proper amount of same with gas for the engine? :-)

Could not agree more Exmar ! Unfortunately few forum members fully understand the advantages of Premium Synthetics only the added cost . However , remember well Straight 30 usage in 2 cycles as a mix and bar oil . Back in the day prior to multi grades and 2 cycle oil , it was the Universal Oil .

I've wondered if folks are concerned about the cost of synthetic oils? I buy the WalMart brand, forget the name, but it's in a big blue container, 5 Qts. for $18, all synthetic, made by Quaker State for them. Quaker State may not be a "designer" oil, but certainly OK for small engines.

You are using Walmart Super Tech ! A very good oil distributed by Shell , which also produce Quaker State and Shell Platinum . I currently use Rotella T6 Syn in my Dodge Ram and Caliber . In my rec vehicles & small engines I use Amsoil Syn . As far as cost unfortunately majority of users buy the cheapest product available . Most manufacturers also spec the cheaper grade applicable , they do not think long term only for the warranty period , it,s your dime why not think within the bigger picture and long term !