Advice please: Bike oils, Car oils?

**Flip** · 6th February 2012, 20:52

Originally Posted by cowpoos

Bull shit...why come on to a thread like this and mis inform people?? read a bike owners manual sometime!

I am really interested to know what part do you think is bull shit?

I have a small model aircraft motor that revs to 20,000 rpm, it uses castor oil as lubricant.

**Kickaha** · 6th February 2012, 20:54

Originally Posted by cowpoos

Now let me see...would I stick oil ....designed for a engine reving say 5-6 thou RPM in my four cyclinder bike engine designed to rev 12-13 thou RPM??

I just checked 7 workshop manuals, 3 are factory manuals and 4 were Clymer/Haynes, not one of them mentions "motorcycle oils" they all say SAE10-30SE or SAE 20-50SF or whatever and only say engine oil

The Yamaha manuals of course say Yamalube which will be some other brand in their packaging but also give an alternative "engine oil"

The K5 GSXR1000 factory manual only says "Oil quality is a major contributor to your engine’s performance and life. Always select good quality engine oil. Use of APISF/SG or SH/SJ with JASO MA.Suzuki recommends the use of SAE 10W-40 engine oil"

**Flip** · 6th February 2012, 21:02

My HD manual says, use a 15W40 or 20W50 oil with a CF to CI clasification,which is a diesel specification.

Even Mobil 1 has a diesel oil SAE CI rating.

**Kickaha** · 6th February 2012, 21:04

Cowpoos is just grumpy because he hasn't been allowed a pie for months

**Flip** · 6th February 2012, 21:06

Originally Posted by aum108

Thanks for the advice guys.
Well, I finally bought some Castrol 4T 10W40 semi-synth, but now the oil drain bung bolt won't budge.
Crap time of day to be lacking an 18mm socket or ring spanner! :/
Always tomorrow I guess.

Castrol make a good product. Whats the Sx letters on it?

**Flip** · 6th February 2012, 21:09

Originally Posted by Kickaha

Cowpoos is just grumpy because he hasn't been allowed a pie for months

Ahhhhhhhhhhh.

He needs to do some thing about that?

**FJRider** · 6th February 2012, 21:21

Originally Posted by Flip

Ahhhhhhhhhhh.

He needs to do some thing about that?

A pint of 10W40 would sort his issue out ... pie's would never be an issue again ...

**pritch** · 6th February 2012, 21:28

When you've read this you will know more than the guy at the bike shop...

http://www.ducatimonster.org/forums/...motor-oil.html

**Kickaha** · 6th February 2012, 21:29

Originally Posted by FJRider

A pint of 10W40 would sort his issue out ... pie's would never be an issue again ...

I hope that would be "Motorcycle oil" not just any plain old 10W40

**pritch** · 6th February 2012, 21:44

Some of those manuals might be a bit old?

The Triumph Speed Triple manual makes sense to me:

Oil Specification and Grade
Triumph high performance fuel injected engines are designed to use 10W/40 or 15W/50 semi or fully synthetic motorcycle engine oil that meets specification API SH (or higher) AND JASO MA.
Do not add any chemical additives to the engine oil. The engine oil also lubricates the clutch and any additives could cause the clutch to slip.
Do not use mineral, vegetable, non-detergent oil, castor based oils or any oil not conforming to the required specification. The use of these oils may cause instant, severe engine damage.

**Kickaha** · 6th February 2012, 21:46

Originally Posted by pritch

Some of those manuals might be a bit old?

Some of the manuals I originally quoted are from the eighties but the K5 GSXR manual wasn't

**cowpoos** · 6th February 2012, 22:03

Originally Posted by Kickaha

I just checked 7 workshop manuals, 3 are factory manuals and 4 were Clymer/Haynes, not one of them mentions "motorcycle oils" they all say SAE10-30SE or SAE 20-50SF or whatever and only say engine oil

The Yamaha manuals of course say Yamalube which will be some other brand in their packaging but also give an alternative "engine oil"

The K5 GSXR1000 factory manual only says "Oil quality is a major contributor to your engine’s performance and life. Always select good quality engine oil. Use of APISF/SG or SH/SJ with JASO MA.Suzuki recommends the use of SAE 10W-40 engine oil"

BSA, norton, briggs and straton manuals knowing you....from the 1570's ???...I find that suzuki one interesting...every manual I've read states motorcycle oil.

Originally Posted by Flip

My HD manual says, use a 15W40 or 20W50 oil with a CF to CI clasification,which is a diesel specification.

Even Mobil 1 has a diesel oil SAE CI rating.

Harley Davidson right?

**cowpoos** · 6th February 2012, 22:09

Oil quality is a major contributor to your engine’s performance and life. Always select good quality engine oil.
Suzuki recommends the use of SUZUKI PERFORMANCE 4 MOTOR OIL or equivalent engine oil. Use of
SF/SG or SH/SJ in API with MA in JASO.
Suzuki recommends the use of SAE 10W-40 engine oil. If SAE 10W-40 engine oil is not available, select an
alternative according to the following chart.

Originally Posted by Kickaha

Some of the manuals I originally quoted are from the eighties but the K5 GSXR manual wasn't

as above from the manual...Suzuki performance 4 motor oil....I can email you the manual... K5 K6 gsxr 1000...

**Woodman** · 6th February 2012, 22:11

So, what is different about motorbike and car oils.?

The only thing I have ever read on a motorcycle oil pack (castrol activ 4t) is that it had some additive in it to help prevent corrosion because motorcycles spend a lot of time inactive.

I think the lines are a bit blurred between marketing and engineering.

**cowpoos** · 6th February 2012, 22:17

Originally Posted by Woodman

So, what is different about motorbike and car oils.?

The only thing I have ever read on a motorcycle oil pack (castrol activ 4t) is that it had some additive in it to help prevent corrosion because motorcycles spend a lot of time inactive.

I think the lines are a bit blurred between marketing and engineering.

gearboxes,clutches,engine share same oil on bikes...much smaller oil galleries....much much finer tolerences...Higher rpm.

seriously..lots