Use 0W-30 instead of 10W-30.

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My bike manual requires using 10W-30 oil, can I use 0W-30 Mobil ESP instead, any difference? Is 0W better or inferior?
 
It is widely believed, as for now, ESP is the best of all Mobil oil, is this true?
 
I would look to see if your manufacturer has 0w-30 listed. If so as long as it meets specs I don't see why not.
 
Generally, the wider the viscosity spread, the worse the oil will perform in a motorcycle engine with shared transmission. As the gears will shear the viscosity index improvers and the oil will end below normal viscosity.

In most cases, it is better to seek out an oil that does not use VII's for motorcycle use.
 
Generally, the wider the viscosity spread, the worse the oil will perform in a motorcycle engine with shared transmission. As the gears will shear the viscosity index improvers and the oil will end below normal viscosity.

In most cases, it is better to seek out an oil that does not use VII's for motorcycle use.
While that's generally true about oils having a wide range of viscosities, my understanding is that the way to make a 0W- oil is to start with very high quality base stock.

As a result 0w- oils are actually quite stable.
 
There's no benefit using a 0W-30 in a scooter unless you are starting it in freezing weather.

Would 0W-30 work in a scooter? Sure, it would probably work ok. My first choice would be a quality 10W-30.
 
My bike manual requires using 10W-30 oil, can I use 0W-30 Mobil ESP instead, any difference? Is 0W better or inferior?

I used 0w30 Mobil 1 auto oil in my RC45... the difference was quicker start ups before warm up with absolutely no difference in clutch performance and no increase in wear...

Generally, the wider the viscosity spread, the worse the oil will perform in a motorcycle engine with shared transmission. As the gears will shear the viscosity index improvers and the oil will end below normal viscosity.

In most cases, it is better to seek out an oil that does not use VII's for motorcycle use.
Technically speaking the consensus among the engine manufactures and builders is 0w is superior because the most wear occurs during start up before warm up so the quickest flowing oil is superior...

Quote Amsoil

60% of total engine wear occurs during cold start up
conditions before oil can circulate through the engine...

Quote Lake Speed Jr certified lubrication specialist at Driven Racing Oil.

“While a thicker viscosity grade is a workable solution, remember that
70 percent of engine wear occurs at start-up, so a higher viscosity
grade actually causes more wear, and we have used oil analysis that
shows this,” says Speed.

Quote 540Rat

"Thinner oil flows quicker at cold start-up to begin lubricating
critical engine components much more quickly than thicker oil can.
Most engine wear takes place during cold start-up before oil flow can
reach all the components. So, quicker flowing thinner oil will help
reduce start-up engine wear, which is actually reducing wear overall."

Quote Frank McCowan, former Electrical /Mechanical Small and Large Equip.
Mech at Washington Metropolitan Area Transit Authority...

Listen to Jim Trainers answer below, it is mostly accurate. most
engine wear occurs during not only the first few minutes, but in the
first few seconds from when the engine is started.

Quote Jim Trainor, diy car maintenance guy

"The oil pressure takes a moment to come up and it takes a moment for
the oil to start circulating. There are bearing surfaces in your car,
called “journal bearings” that are quite literally two pieces of metal
separated by a film of oil that is delivered in under pressure in a
continuous flow. These surfaces do not touch when the engine is
operating normally. Other bearing surfaces, such as cam followers, and
piston rings, do touch but are subject to a continuous flow of
lubricating oil. When you start the car there are a few moments where
the oil is absent from these surfaces. Hence increased wear occurs."

Quote EAA ( Experimental Aircraft Association)

"When we first crank the engine, there's no oil pressure and the
crankshaft cranking speed is pathetically slow. The conditions for
hydrodynamic lubrication simply do not exist. Consequently, there is
metal-to-metal contact between the journal and the bearing, and wear
is inevitable."

Quote SAE

Wear of engine components is affected by lubricant quality and flow
and by the metallurgy of the rubbing parts. Recent studies have shown
that after starting an engine at sub-zero temperatures, more than 6
min elapsed before oil reached all of the rocker arm assemblies of a
V-8 engine. Since this could have an adverse effect on rocker arm and
ball wear, the effects of intermittent and zero oil flow on rocker arm
and ball wear were investigated.

Quote Yamaha
Designed from synthetic and mineral base stocks to provide the best
extreme cold-weather performance possible for all Yamaha Snowmobiles.
Gives extra protection during the critical cold-start period where a
large part of an engine’s wear could occur. It also allows faster
starting than any conventional 5W or 0W grade oil could provide. The
additive package is not found in common motor oils. Yamalube 0W-30
provides optimum low-temperature pumpability down to -40° F (-40° C).
This oil has passed rigorous testing—in fact, it’s so good that even
our factory engineers now recommend it for Yamaha snowmobile models
that specify 5W-30.

We are so confident we craft the highest quality powersports oil in
the industry that we will warrant the performance of Yamalube in your
new Yamaha vehicle’s or other qualified product’s engine for 20 years
or 100,000 miles (5,000 hours of operation if no odometer), whichever
comes first.

UsedOilFlowTest6.webp
 
Only it's difficulty to get 10W-30 in my country. I heard fellow people saying mobil EP is rubbish, opt for ESP, hence my question about the grades.
There's no benefit using a 0W-30 in a scooter unless you are starting it in freezing weather.

Would 0W-30 work in a scooter? Sure, it would probably work ok. My first choice would be a quality 10W-30.
 
I used 0w30 Mobil 1 auto oil in my RC45... the difference was quicker start ups before warm up with absolutely no difference in clutch performance and no increase in wear...


Technically speaking the consensus among the engine manufactures and builders is 0w is superior because the most wear occurs during start up before warm up so the quickest flowing oil is superior...

Quote Amsoil

60% of total engine wear occurs during cold start up
conditions before oil can circulate through the engine...

Quote Lake Speed Jr certified lubrication specialist at Driven Racing Oil.

“While a thicker viscosity grade is a workable solution, remember that
70 percent of engine wear occurs at start-up, so a higher viscosity
grade actually causes more wear, and we have used oil analysis that
shows this,” says Speed.

Quote 540Rat

"Thinner oil flows quicker at cold start-up to begin lubricating
critical engine components much more quickly than thicker oil can.
Most engine wear takes place during cold start-up before oil flow can
reach all the components. So, quicker flowing thinner oil will help
reduce start-up engine wear, which is actually reducing wear overall."

Quote Frank McCowan, former Electrical /Mechanical Small and Large Equip.
Mech at Washington Metropolitan Area Transit Authority...

Listen to Jim Trainers answer below, it is mostly accurate. most
engine wear occurs during not only the first few minutes, but in the
first few seconds from when the engine is started.

Quote Jim Trainor, diy car maintenance guy

"The oil pressure takes a moment to come up and it takes a moment for
the oil to start circulating. There are bearing surfaces in your car,
called “journal bearings” that are quite literally two pieces of metal
separated by a film of oil that is delivered in under pressure in a
continuous flow. These surfaces do not touch when the engine is
operating normally. Other bearing surfaces, such as cam followers, and
piston rings, do touch but are subject to a continuous flow of
lubricating oil. When you start the car there are a few moments where
the oil is absent from these surfaces. Hence increased wear occurs."

Quote EAA ( Experimental Aircraft Association)

"When we first crank the engine, there's no oil pressure and the
crankshaft cranking speed is pathetically slow. The conditions for
hydrodynamic lubrication simply do not exist. Consequently, there is
metal-to-metal contact between the journal and the bearing, and wear
is inevitable."

Quote SAE

Wear of engine components is affected by lubricant quality and flow
and by the metallurgy of the rubbing parts. Recent studies have shown
that after starting an engine at sub-zero temperatures, more than 6
min elapsed before oil reached all of the rocker arm assemblies of a
V-8 engine. Since this could have an adverse effect on rocker arm and
ball wear, the effects of intermittent and zero oil flow on rocker arm
and ball wear were investigated.

Quote Yamaha
Designed from synthetic and mineral base stocks to provide the best
extreme cold-weather performance possible for all Yamaha Snowmobiles.
Gives extra protection during the critical cold-start period where a
large part of an engine’s wear could occur. It also allows faster
starting than any conventional 5W or 0W grade oil could provide. The
additive package is not found in common motor oils. Yamalube 0W-30
provides optimum low-temperature pumpability down to -40° F (-40° C).
This oil has passed rigorous testing—in fact, it’s so good that even
our factory engineers now recommend it for Yamaha snowmobile models
that specify 5W-30.

We are so confident we craft the highest quality powersports oil in
the industry that we will warrant the performance of Yamalube in your
new Yamaha vehicle’s or other qualified product’s engine for 20 years
or 100,000 miles (5,000 hours of operation if no odometer), whichever
comes first.

View attachment 271517
informative, many thanks.
 
Generally, the wider the viscosity spread, the worse the oil will perform in a motorcycle engine with shared transmission

Technically speaking 0w is not a viscosity flow test to simulate start
up because oil don't flow much at minus degrees rather the W is a API
test where a cup of oil is stabilized to minus degrees and then
stirred by a precision motor / magnet and the amount of milli amps it
takes to move it in the oil are recorded and compared to the chart
attached...
coldcranksim-jpg.98853
 
If your motorcycle has a wet clutch, best to not use oils with friction modifiers. I doubt you will find any 0W/30 that doesn’t have lots of friction modifiers.

Friction modifiers additives are only a small percent of the total oil
product and help the base oil do things that it otherwise could not...
Additives fall into several basic categories but Moly, Phosphors and
Zinc are the most often used friction modifiers... what ever small
percent of FM employed they will not defeat a wet clutch in good
working order... Mileage is chief factor that determines when your
clutch is about to slip more than any one oil...
 
It is widely believed, as for now, ESP is the best of all Mobil oil, is this true?
You could say that, Mobil 1 ESP is sure one of their top products. Low-SAPS so good on emissions systems and good at keeping internals clean, especially if an engine is burning or consuming any oil.
 
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