For what it's worth.

[ZOA NOM]

Speaking of oil... Just switched from a leftover batch of Delo 400 to Mobile 1 4t motorcycle oil at Randy's suggestion. It was my first dramatic experience with a single change, and I couldn't be more surprised. The bike was obviously smoother at startup and idle, as expected when simply putting clean oil in it, but the "clatter" was completely gone. Once I got it on the road for the ride back home (about an hour ride), I discovered my cruising rpm had dropped by about 250 rpm, and when I filled up for my commute the next day, I discovered my mileage had increased from 40mpg to 44mpg.

Highly recommend the stuff.

[Bill_Rockoff]

my cruising rpm had dropped by about 250 rpm, and when I filled up for my commute the next day, I discovered my mileage had increased from 40mpg to 44mpg.

Highly recommend the stuff.

Not sure if serious. 

In case you *are* being serious, nothing you do to the motor oil will change your final drive ratio.  If your cruising revs dropped 250 rpm, it's because your cruise speed was about 4 mph slower.  Which would also explain why you got better fuel economy.

In case you're just kidding and I'm too dense to pick up on it unless you include "...it also made my hair grow back and it increased the size of my penis by over 2 inches" then der, ya got me.

That said, I have noticed that my bike makes less valve clatter and shifts much better with heavy-weight Mobil 1 than with any other oils I have tried. 

[FJ1100mjk]

And I also once read that: 80% of all fishing lures were made to catch fishermen. Made me think, and laugh too.

[gumby302ho]

Speaking of oil... Just switched from a leftover batch of Delo 400 to Mobile 1 4t motorcycle oil at Randy's suggestion. It was my first dramatic experience with a single change, and I couldn't be more surprised. The bike was obviously smoother at startup and idle, as expected when simply putting clean oil in it, but the "clatter" was completely gone. Once I got it on the road for the ride back home (about an hour ride), I discovered my cruising rpm had dropped by about 250 rpm, and when I filled up for my commute the next day, I discovered my mileage had increased from 40mpg to 44mpg.

Highly recommend the stuff.

[img width=222 height=400]https://mobiloil.com/~/media/amer/us/pvl/products/motor-oils/mobil-1-brand/mobil-1-4t/products/mobil-1-racing-4t-oil.ashx[/img

So what is the weight, is it 40 weight or? I will assume its 40 being called Delo 400. I run 20w50 and not sure if any oil can keep the air cooled lump quiet!

[ZOA NOM]

Actually being serious. The changes I noted happened without any other changes, and I suppose there could could be some variability in the speedo reading, but I don't change the speed that I ride very much, and I constantly watch the gauge, which is why it was noted. I have done oil changes before without any remarkable changes experienced. Prior to the Mobil 1 change, my riding style was consistent, as was the mileage I recorded at every fillup; dead-nuts at 40mpg. Three tanks since the oil change have been at 44mpg, and my riding speeds or style hasn't wavered.

[ZOA NOM]

Speaking of oil... Just switched from a leftover batch of Delo 400 to Mobile 1 4t motorcycle oil at Randy's suggestion. It was my first dramatic experience with a single change, and I couldn't be more surprised. The bike was obviously smoother at startup and idle, as expected when simply putting clean oil in it, but the "clatter" was completely gone. Once I got it on the road for the ride back home (about an hour ride), I discovered my cruising rpm had dropped by about 250 rpm, and when I filled up for my commute the next day, I discovered my mileage had increased from 40mpg to 44mpg.

Highly recommend the stuff.

[img width=222 height=400]https://mobiloil.com/~/media/amer/us/pvl/products/motor-oils/mobil-1-brand/mobil-1-4t/products/mobil-1-racing-4t-oil.ashx[/img

So what is the weight, is it 40 weight or? I will assume its 40 being called Delo 400. I run 20w50 and not sure if any oil can keep the air cooled lump quiet!

The Delo 400 that I was using was a leftover batch of 30 weight oil that I used in my Porsche race car.

I'm unsure of the weight of the Mobil 1 4t stuff.

[FJmonkey]

Its a 10W-40

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-4t-motorcycle-oil

Price at Wallmart $9.97 per QT.

[ZOA NOM]

Its a 10W-40

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-4t-motorcycle-oil

Price at Wallmart $9.97 per QT.

Of course it is, I paid 10.99 at O'Reilly's. Oh well.

For the record, I didn't mean to start a war over gearing vs lubrication, etc. Just reporting my experience. I noticed a change, that's all.

[Dan Filetti]

So oil.  I have personally never seen an mpg reduction/ increase, nor heard idle differences from oil to oil, but I have noticed a stark difference.... 

I had been using Mobil 1 red cap when the stuff stopped being sold.  I ran out of my stock-pile of it and decided out of necessity, I'd try other oils.  I had read, here or elsewhere (can't remember) that some folks use Castrol 10-40 to great effect. It was cheap and I figured, worth a shot.   That lasted in my Gixxer for about 8 miles.  I changed the filter, filled it up with the stuff, ensured I had the proper level, and took it for a test ride. 

Immediately I could not believe it was the same bike in terms of shifting.  It felt like I was trying to shift in a box of rocks.  I actually pulled over to make sure the level was not way low (it wasn't).  I rode it for a few more miles to make sure it did not just need to work itself out.  The shifting did not improve.  I drove it home, dumped the oil and bought some Rotella-T and refilled/ replaced the brand-new filter (grrrr)... and the test ride was immediately back to my normal, silky smooth shifting bike.  I have used the Rotella since, and never felt that ugly shifting again.  I'm 99.9% sure that it was the oil that caused my shifting problems.  Something to do with dyno vs. synthetics, not sure, but I'm not interested in any more experimentation...

My $0.02

Dan


     

[Capn Ron]

Its a 10W-40

https://mobiloil.com/en/motor-oils/mobil-1/mobil-1-4t-motorcycle-oil

Price at Wallmart $9.97 per QT.

Of course it is, I paid 10.99 at O'Reilly's. Oh well.

For the record, I didn't mean to start a war over gearing vs lubrication, etc. Just reporting my experience. I noticed a change, that's all.

That's the stuff I've been using since the full rebuild in 2012.  The last time I was at AutoZone, they had some $2 instant rebate on Mobil1 oil that dropped it down to around $7/qt.  Whaaaa???  Bought a case of it.   

[FJ1100mjk]

Has this officially become an engine oil thread now? What's the criterion for that kind of thread threshold anyways?

[ZOA NOM]

Has this officially become an engine oil thread now? What's the criterion for that kind of thread threshold anyways?

Totally my fault. Let's end it while we still have some credibility left.

[TexasDave]

Another oil thread? Just shoot me now----Dave   

[FJ1100mjk]

while we still have some credibility left.

You're talking about yourself, right?

I fell off the Credibility List quite a while ago. If I ever was on it.

PS: If you have a Gixxer rear wheel on your FJ, you're a shoe-in for the List.

[ZOA NOM]

while we still have some credibility left.

You're talking about yourself, right?

I fell off the Credibility List quite a while ago. If I ever was on it.

PS: If you have a Gixxer rear wheel on your FJ, you're a shoe-in for the List.

Haha, yup, put me on the list...