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Old 07-24-2004, 03:38 PM
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wolfgangwelding wolfgangwelding is offline
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Default synthetic oil?

So the first engine oil change is comeing up for my bobcat should I go synthetic or regular oil?
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Old 07-24-2004, 03:53 PM
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oh boy ...this thread will go a long ways ....i run synthetic as in amsoil...cost like hell but i find it to my benefit...i change oil every 25,000 miles or 1 year and change oil filter every 12,500...the benefit is i'm lazy and this way i don't have to crawl under every 3,000....both my vehicles have over 100,000 miles and i run them hard along with my mowers and 4 wheeler...only thing i don't have synthetic in is my 3 sa-200 welders and that is cuz they leak it out and make a mess ...synthetic is a tough oil to hold...if i ever overhaul one of my welders they will be put on synthetic after break in....the 2 biggest things about synthetic is decreased maintence and flowablitiy in the cold...thats my nickels worth
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Old 07-24-2004, 04:56 PM
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I run Amsoil in my Ranger 8.
I hope Shade will pop in and advise us the Brillance, or folly of our actions.
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Old 07-24-2004, 05:36 PM
arcdawg arcdawg is offline
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while i cannot comment on heavy eq .........i can tell you this much... 87 vw gti bought it with 175,000 guy had ran mobil 1 since 100,000 and looking at the the oil filler......inside was CLEAN ........i ran that car for an other 100,000 miles beat the shiz out of it....5,000 rpm every day for 3 years and never had a problem......however synt finds ways to seep out of older LOOSER engines

good luck with what ever you decide

dawg
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Old 07-24-2004, 05:40 PM
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Shade Tree Welder Shade Tree Welder is offline
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Quote:
Originally Posted by arcdawg
.....however synt finds ways to seep out of older LOOSER engines

good luck with what ever you decide

dawg
The older buna-N seals swell and leak with synthetics, newer engines have better seals, compatible with synthetic basestocks.

I will find of the other threads and post links to them.

http://www.shopfloortalk.com/forums/showthread.php?t=70
http://www.shopfloortalk.com/forums/...read.php?t=131

Short version, don't waste your money.
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Last edited by Shade Tree Welder; 07-24-2004 at 09:59 PM.
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  #6  
Old 07-24-2004, 08:41 PM
f350ca
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I personally can't see the point in synthetic engine oils. The cost is rediculous and the only benifit I've run across is the lower viscosity they can achieve, and thats only if your starting the vehicle at 40 below. My diesel won't start at that temp unless its plugged in, if it is the oil is warm anyway. As for the extended oil changes, think of all the sludge that builds up in the pan that isn't getting drained.
We ran pickups at work with regular oil to 400,000 km regularly and would never touch an engine. By that point the body was trashed from working off road so synthetic wouldn't gain any life anyway.
My two cents worth,
Greg
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Old 07-26-2004, 11:14 AM
arcdawg arcdawg is offline
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while i am no chemist.........i would have to say that i really like synth oil.......
i drive small 4 cylinder cars that rev pretty high ......4to 5000 rpm that i feel burns up normal oil..........synt seems to keep my engine cooler.....and the oil itself seems to last longer........to make up the price cost i change it every 6000 miles.........but throw a new filter on every 3000 and top it off......

it works for me and im sticking with it !!!

dawg
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Old 07-26-2004, 06:18 PM
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Markopolo Markopolo is offline
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Well...I'll throw my 2 cents in: I think synthetic oil is a waste of money !

Who want's to prolong oil changes ? . . . The more often you drain, the more crap you get out of the engine ! Although I don't have a gasoline powered welding machine, I DO have a lot of other stuff that has gasoline engines, and, in my opinion, there's no better "insurance" for long engine life than regular oil & filter changes.

I might be a little old fashioned, but I've always used straight 30 wt. Kendall.

(p.s. I just sold a Dodge Dynasty with a 3.3. litre V6 that had over a quater million miles on the ticker, and she still ran PERFECT) !
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Old 07-26-2004, 06:37 PM
wed4life wed4life is offline
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I will jump in on this one. A friend of mine has an AATV with a transplanted 18hp V-Twin Briggs Vangaurd that would get hot and vapor lock. He was looking into an oil cooler because the oil temp was way too high. I believe there was not enough air circulation in the small confined space.
Anyway, all he did was drain the oil and put in Mobile 1 (for V-Twin Motorcycles) and the oil temp dropped 50 degrees ! !
No more vapor lock. This alone makes me a believer. And, when it is really cold, the engine spins like summer time.

Guess what the US armed forces use? Its not dino oil.

There are just too many benefits, I my opinion, to not use it.

David
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Old 07-26-2004, 06:47 PM
banzaitoyota banzaitoyota is offline
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Quote:
Originally Posted by wed4life

Guess what the US armed forces use? Its not dino oil.

There are just too many benefits, I my opinion, to not use it.

David
David: Guess what else they have (based on Nuclear Sub OPERATING experience)
1. A daily purification schedule
2. Oil that is stored in a heated sump
3. Stringent sampling and analysis requirements
4. Known operating parameters
5. Stringent Quality testing and acceptance criteria.


There are good installations for synthetic lubes, in your Crankcase is not one of them (unless you are at the top of the Amsoil distribution pyramid).

Keep it clean change it often. There are exceptions to this but very few.
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