Originally Posted By: tig1
Some here are concerned about the price of a quality synthetic oil for a small engine. I change the oil in my Honda self propelled mower once a year. I use Mobil 1 5w30(have used 5-30EP a couple of times when I had a half qt left over). Anyway, a half qt cost me about $2.85(by the jug). My mower cost to replace is about $500-$600. So $2.85 a year for a quality oil seems pretty reasonable to me. By the way, my Honda is now 23 years old and running great. Uses no more oil than when it was new.
Posted this earlier. You may have missed it:
"I've got a 30+ year old Tecumseh 3.5 engine on an old Craftsman lawnmower that has been fed everything from turkey gravy to sardine oil and it's still running like new.
It's never seen synthetic oil and for the first ten years, that mower belonged to a guy who didn't know where the drain plug was on the engine.
If you are changing oil at intervals specified in the engine manual, synthetic oil is not necessary to prolong OPE engine life. Any oil will provide the lubrication it needs. Just change the oil annually or as per manual's instructions and the engine will usually outlast the machine it's mounted on."
I don't look at it as a cost per unit expense.
I look at what value I'm getting for my money and I don't see the sense of paying higher prices for an oil that will not be used to it's full potential when a regular conventional oil will do the very same job just as well.
The argument you put forth is unreasonable. When an inexpensive oil will do the same job as the expensive product, why spend more money?
Your lawnmower will last just as long using a decent conventional oil as it will using synthetic. There are literally millions of small engines living long productive lives and never seeing a drop of synthetic oil. You can also rest assured that there are very many engines that manage to live long lives with virtually no maintenance and minimal attention to the oil. I've seen it.
My argument is that if a synthetic oil is not to be used for it's intended purpose, which is primarily long duration service and/or extreme operating conditions, why spend two, three or four times the money? Just doesn't make sense.
Synthetic oil for OPE is an expensive and needless option. It is definitely not a necessity.