Posted by Texasmark1 on July 21, 2016 at 06:16:47 from (172.242.5.194):
In Reply to: synthetic oil posted by nhbalerman on July 20, 2016 at 18:55:26:
I'm back in on this one. Had my beer and popcorn, took my nap and ready for round 2. Ha! (I don't drink but a good yarn.)
I run syn in my air cooled lawn mowers because it lasts 2 seasons without getting dirty and I just think it's time to change. I'm not the oil change nut I once was.
Don't give me this baloney about it stays clean because it doesn't have adequate detergent.....sell that one to a moron! It stays clean because the base stocks resist breakdown better! I don't add oil between changes but I do put in 2 quarts for convenience in my V twins of Honda and BS brands even though they specify something less.....just convenient (quart marks on the container) and mowing the hills I do, I want plenty of oil over the oil pump inlet. You hear this and that about don't overfill....well I never had a problem whipping up oil in a crankcase because it was over full and I'm not worried about MPG on my lawn mowers.
Here's the caveat: You can access the operational specified temp ranges of syn. type oils on the www so I'm not going to bore you with that, but they stay together on up to 400F on some charts.
The other day I had a 20 hp BS V twin working it hard in 90+ heat for a couple of hours. Drove over to the shop and got out my HF infrared no contact thermometer (have 2) and looked all over the engine for temps. Obviously the muffler was hot....550F give or take, but on the rest of the engine I couldn't find a temp over 186F. Shucks, My 2011 Silverado sits on 210F solid as a rock....per the temp gauge, has 2 sequential electric fans rather than an engine driven fan to keep it there since new.
So my original theory that air cooled engines run hotter and that justifies paying the extra for syn. is a bunch of "hot air", just that......BALONEY! Butttt the oil does stay cleaner longer and instead of changing a couple of times per season it's 2 seasons as stated above. That is well worth the cost to me!
That's more of my 2c and worth every penny you paid for it. Grin!
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