Quote from: crzydood17 on December 07, 2012, 01:29:21 PMThe beauty of a synthetic comes when you have tight tolerances and HIGH performance. Neither of these things is something the GS500 has.

I'm pretty sure an air cooled engine like the GS500's can benefit from the superior thermal protection synthetic offers and it's extended cold weather pour point?
Nothing in the GS design says "I like cheap oil", that's the owners justifying their choice in lubrication, nor does it need synthetic to run for decades.

Having wrenched at both professional and hobby levels since the early '70's, I will toss this into the mix. One of the most common causes of catastrophic engine failure is when oil gets hot, the viscosity breaks down and it gets thin, next step is metal to metal contact If only for a nano second, you then have the snowballing/galling effect of catastrophic engine failure. This isn't my opinion, it's a fact. This is why I personally don't use cheap oil.

EDIT: Let me change that to "any old oil" as apposed to "cheap", any brand name is fine, just clarifying, I do love me some Castrol GTX 

I DEMAND MORE FIGHTING!

Quote from: Funderb on December 07, 2012, 05:32:54 PM
I DEMAND MORE FIGHTING!

(slaps funderb across face with leather glove .... old school duelling style)

there ya go!! 

I just did some very rough math.

It looks like you can buy a new GS engine every 75,000 miles with the money you save buying dino oil instead of a full synthetic.

As long as there is something slippery in the engine everything should be fine.

Let's look at some hard numbers and ignore personal opinions. Here's the MSDS for Mobil1 Racing 4T 10W-40 and V-Twin 20W-50. 
http://www.mobil.com/USA-English/Lubes/PDS/NAUSENPVLMOMobil1_Motorcycle_Oils.aspx

Mobil1 Racing 4T 10W-40's Flash Point is 212°C/413.6° Fahrenheit
Mobil1 Racing 4T 10W-40's Pour Point is -45°C/-49° Fahrenheit

Im not saying Mobil1 is going to have the best numbers for this, I'm pretty sure Amsoil and Rotella T will hold up well in these two category's also. Go get the MSDS to your favorite oil and just for shitz and grins let's see the numbers for the Flash Point and the Pour Point. The Rainman in me sez that once an oil goes above or below these two numbers it is no longer oil.

What else are you gunna do on Friday night? 

Quote from: Bluesmudge on December 07, 2012, 05:49:29 PM
I just did some very rough math.

It looks like you can buy a new GS engine every 75,000 miles with the money you save buying dino oil instead of a full synthetic.

As long as there is something slippery in the engine everything should be fine.

Agree 100% 

I demand non qualified oil molecule analysis here people! And as long as we're putting slippery stuff in the engine how bout a banana?




Thread jack much? Lol

You have to wait for them to get ripe before they have the correct properties. Also, make sure to measure the volume before squishing them into the engine because they are difficult to measure with the dip stick.

In all seriousness, I remember seeing a video where a Honda Cub ran just fine using old cooking oil as a lubricant.

If that's the case ill take a slash into my engine sump

Well that settles it... ditch the GS, buy a Honda Cub, visit old greasy food joints for their used oil and ride away happy in the sunset safe in the knowledge all is well cause Bluesmudge remembers 

I saw a video where They ran an engine without a sump and even hosed down the moving parts. Don't know what happened after that 30 second scene but there you go. Give that a go and see how you travel.

I HAD Motul 1000 in my bike. Clunky changes, false neutrals. I changed to Motul 5100 and gear changes were smoother, false neutrals greatly reduced. Switched to Motul 300v, gear changes smoother still, false neutrals gone. Now using Mobile 1 Racing 4T. Zero false neutrals, gear changes are so smooth I barely touch the gear change lever and she changes. I can also push my bike around in gear with the clutch pulled in, something not possible with Motul 5100 or lesser oils.

BUT, Mobile 1 racing 4t is Expensive. It gives me a hard on knowing it is in the bike. Though I do wish it smelled almost like perfume like Motul oil does. I keep some motul on hand just to dab behind the ears occasionally and on my wrists, so I smell sweet. 

BUT, this all pales into what is MOST important. Forget the oil question. To hell with you for asking. A pox upon you vile pleb. May the fleas of a thousand camels infest the armpits of any person who dares to suggest diesel truck oil or cheap-ass walmart recycled oil extruded from the bottoms of KFC boxes and from the faces of teenagers all over the country. You NEED to be asking about the Milk. I cannot believe this? People keep forgetting about the milk. And NO, do NOT use soy milk. That's for yuppy scooter riders. And never put powdered milk in the handlebars either. How many darn times do we need to hammer this point home?

Michael

Ahh, come on!  I used soy milk.  No problems.

Quote from: Suzuki Stevo on December 07, 2012, 05:13:28 PMEDIT: Let me change that to "any old oil" as apposed to "cheap", any brand name is fine, just clarifying, I do love me some Castrol GTX 

Really, as long as you're using Sears brand economy priced oil (or similar quality), it'll be alright. Also, keep in mind oil can operate just fine in conditions well past its flash point--it doesn't burst into flames and disappear. I'm pretty sure no engine oil ever made has a flash point of 1600°F, yet a good oil can survive lubricating a turbo bearing spinning at 170k RPM within millimeters of the glowing hot turbine housing without skipping a beat.

The GS500 engine does not generate temperatures or shear stresses anywhere near high enough to cause even dirt cheap oil to change phase. The bottom shelf stuff will likely still shear prematurely though, which is why I wouldn't recommend it.

Quote from: slipperymongoose on December 07, 2012, 06:02:33 PM
I demand non qualified oil molecule analysis here people! And as long as we're putting slippery stuff in the engine how bout a banana?




Thread jack much? Lol

no no no Slips!... bananas are for thw worn diffs in cars!! ... instant 300km driven distance or less noise killer!...

bananas in an engine?!... pffft ... bloody queenslanders

Sears oil...I'm not sure if that gives me oil thread Bo Nar?

OK...I got me an 18 Pack of Coors Light and a bottle of Bawls...C'mon oil thread page 3!!!

I'm guilty of using Sears oil once....when my turbo drain line was blocked and I knew all 4.5 quarts would come out the exhaust over the course of 5 miles. Long story, but I probably left a good hole in the ozone that day.

coors light?!... thats a bit..... effeminate aint it!! 

next thing you'll be smearing yourself in royal purple oil products and writhing around on a plastic sheet!! .. gotta use the right viscosity though!!

see.. i kept it oil related and potentially provoked controversy by other means at the same time!!... 

Ah, the old "writhing around on a plastic sheet covered in oil" thing. A good time was had by all.

Interesting twist on that concept....

Nude twister covered in baby oil. That'd have to be worth a laugh or two. Come to think of it, I'd just sit back and watch while it as played by some coeds or something.

Quote from: Janx101 on December 07, 2012, 08:52:53 PM
coors light?!... thats a bit.....  effeminate aint it!! 

next thing you'll be smearing yourself in royal purple oil products and writhing around on a plastic sheet!! .. gotta use the right viscosity though!!

see.. i kept it oil related and potentially provoked controversy by other means at the same time!!... 

Effeminate... did you not see my Bawls? 
Zima...now that's a man's drink!!

Quote from: Suzuki Stevo on December 07, 2012, 09:01:28 PMZima...now that's a man's drink!!

Too bad they stopped making it. Don't ask me how I know that.

Quote from: mister on December 07, 2012, 08:59:21 PM
Interesting twist on that concept....

Nude twister covered in baby oil. That'd have to be worth a laugh or two. Come to think of it, I'd just sit back and watch while it as played by some coeds or something.

Been there, done that...


Minus the baby oil though...


And minus the nude part...

But it comes up every New Years party

- Bboy