Straight 50 weight oil

[JEEPRUSTY]

So its summer and the temps would allow its usage.
Anyone got a straight weight in their crank.

I cannot imagine you desert dwellers using a 10w based oil.

 

[Nessism]

I don't see the point of running straight 50. That stuff is thick as molasses and won't flow very well to protect your engine unless it's fully hot. 20W-50 has the same high temp characteristics without the cold temp downsides.

 

[Guest]

I was told years ago at a training seminar hosted by the factory, that 10w-40 was what should be used.

 

[Steve]

I was told years ago at a training seminar hosted by the factory, that 10w-40 was what should be used.

I wonder if that's why it's cast into the oil cap and printed in all the manuals? :-k

.

 

[1948man]

I was told years ago at a training seminar hosted by the factory, that 10w-40 was what should be used.

That was years ago before Walmart got 15-w-40 dyno Rotella.

 

[JEEPRUSTY]

I wonder if that's why it's cast into the oil cap and printed in all the manuals? :-k

.

This from a guy who cannot use a colourtune properly in spite of all the online advice for cv carbs.

 

[tkent02]

Rusty never fails to impress.

 

[JEEPRUSTY]

Rusty never fails to impress.

And you and your over-posting snippy ilk never fail to fail to impress.

Really Tkent make an effort or just get a small spoon and dig a modest sized hole to hide your insignifigance.

 

[Steve]

Rusty never fails to impress.

Sure he does. I can't read his postings.

.

 

[cowboyup3371]

Sure he does. I can't read his postings.

.

It's a good thing too Steve because he sure knew how to put his foot in his mouth on this one.

 

[SqDancerLynn1]

Use 50 wt and you will have to let it warm up for 1/2 hour before the clutch will work !!!

 

[Big T]

So its summer and the temps would allow its usage.
Anyone got a straight weight in their crank.

I cannot imagine you desert dwellers using a 10w based oil.

You need to expand the parameters of your imagination

I don't think there's been a bike motor running straight weight oil since the 70's

Is that how you plan to mitigate your unfound oil leak?

 

[Guest]

I run a straight 50w (dino) oil in my '79 Gs1000s and have done for a number of years . Good $hit if you have ambient temps in the 30's and 40's(C) .
I start the old girl up and let her warm while I put my gear on then we go dancin'.


Cheers , Simon .

 

[Nessism]

I run a straight 50w (dino) oil in my '79 Gs1000s and have done for a number of years . Good $hit if you have ambient temps in the 30's and 40's(C) .
I start the old girl up and let her warm while I put my gear on then we go dancin'.


Cheers , Simon .

Hey Simon,

No such thing as 50W oil. The W indicates "winter" and while there is SAE 50 grade oil, there is no 50W.

Honestly now, using straight 50 provides no realistic benefit for your engine, and even hurts it compared to something like 20W-50 which flows much more easily at normal ambient temperatures. While that molasses thick 50 weight oil is warming up it's not flowing into places that a 20W oil would. And both 20W-50 and straight 50 will have the exact same thickness at higher engine sump temperatures.

No downside to using multigrade.

As an aside my first car was a Triumph TR4A. The stupid thing seized on the test ride while I was trying to selling it. Tore off the head to find a piston cracked and the oil control ring pinched and binding. Broke that bad boy ring free and slammed the engine back together only to have a serious oil burning problem, most likely from the scored cylinder wall holding oil. Out of desperation I dumped in straight 50 weight oil to slow the burning and it did the job; still smoked once the oil got warm but much less than before when the oil was cold. The oil pressure gauge went over the top due to the crazy high oil pressure. Sold the car before it blew up to a guy that offered me a lid of pot in partial trade (no, I didn't take the weed, cash only please).

 

[Guest]

So I've been using what for the last 4 years ???


Cheers , Simon .

 

[Krunk_Kracker]

In this thread: Grumpy Old Men

 

[Big T]

In this thread: Grumpy Old Men

KK

It's what JeepRusty does - starts something outrageous

I'll bet he never posts in this thread again

 

[7981GS]

As there are no straight 50W quarts of synthetic oil to be found, yet,
in the Summer when it averages 85-105, I will add one quart of Valvoline VR-1 Racing 50Wt. with 3.5 quarts of synthetic to make it closer to a 30W-50 oil.

Daniel

 

[Steve]

As there are no straight 50W quarts of synthetic oil to be found, yet,
in the Summer when it averages 85-105, I will add one quart of Valvoline VR-1 Racing 50Wt. with 3.5 quarts of synthetic to make it closer to a 30W-50 oil.

Daniel

And the advantage of that would be ...??? :-k

In case nobody has caught on yet, the first number, the one with the "w" after it, is the approximate viscosity when the engine is cold.
The lower the number, the easier it will flow. Why would you want to start with a 30w oil, especially when the manufacturer recommends a 10w?
Personally, I like a thinner oil when cold, so it flows easier and starts lubricating the cam bearings sooner.
The fact that my preferred oil is also a "synthetic" is just icing on the cake, but I use 5w-40 Rotella Synthetic.

Using thicker oil might increase your oil pressure, but please remember that higher pressure does not necessarily mean that you have more oil flowing.
You can plug the oil gallery just downstream from a gauge and see all kinds of pressure, but ZERO flow.

.

 

[7981GS]

At 85 degrees+, check your owners manual.

Daniel