Anyonen had a stuck oil filter recently?

[SV650rules]

that article is from 1994

[R1ffR4ff]

Originally Posted by SV650rules

that article is from 1994

But many of it's points are still valid IMHO.

[aesmith]

Interesting, particularly ..

Originally Posted by Preliminary conclusions

4.The viscosity of petroleum-based oils, whether designed for auto or motorcycle application, drop at approximately the same rate when used in a motorcycle.
5.There is no evidence that motorcycle-specific oils out-perform their automotive counterparts in viscosity retention when used in a motorcycle.

These last two results (4-5) definitely do not agree with what the motorcycle oil producers have been telling us. In fact the test results not only indicate the two motorcycle oils being outperformed in viscosity retention by the two automotive synthetic products. but even by the relatively inexpensive Castrol GTX, which is a petroleum product. This directly contradicts the advertising claims made by the motorcycle oil producers.

However it's a shame they didn't test motorcycle specific oils from Castrol and Mobil to make a more direct comparison.

However I guess nobody wants to risk trashing their engine, so for me the not too overpriced motorcycle specific oil makes sense.

[SV650rules]

Oils have come a long way since 1994.

Motorcycle oils are a cross between engine and gearbox oils, gearbox duty puts high shear loads on molecules and the friction modifiers in some car oils can cause clutch problems in bikes.

Like aesmith I will stick with bike specific oil.

here is a quote from an oil article I read - they can't even agree about car oils, let alone bike specific oils.

'Because of the real or perceived need for motor oils with unique qualities, many modern European cars will demand a specific OEM-only oil standard. As a result, they may make no reference at all to API standards, nor SAE viscosity grades. They may also make no primary reference to the ACEA standards, with the exception of being able to use a "lesser" ACEA grade oil for "emergency top-up", though this usually has strict limits, often up to a maximum of litre of non-OEM oil. Harley Davidson may have at least partially hopped onto this bandwagon....'

[Blapper]

Jeez man, please edit that post and change the colour! My eyes - arrrrrgh!

[Red Herring]

Originally Posted by R1ffR4ff

Here's a damn good read.I've read a lot on engine oils over the years,

http://www.nightrider.com/biketech/oiltest1.htm

Interesting read, confirms much of what many people suspect however the bottom line is you make your choice and need to be happy with that.

Personally I was a bit chuffed when I read the article because I've been running all my four stroke bikes with the exception of my 1960 Matchless on Mobile1 fully synthetic for as long as I can remember. My Hornet is currently sitting on just under 70k, doesn't burn a drop between services, and I've never had to touch the valve train. My SV has around 20k on it, all of which have been pretty much flat out as it doesn't get ridden any other way.... same story as the Hornet. Oh and they are both still on their original clutches.

[R1ffR4ff]

Originally Posted by Red Herring

Interesting read, confirms much of what many people suspect however the bottom line is you make your choice and need to be happy with that.

Personally I was a bit chuffed when I read the article because I've been running all my four stroke bikes with the exception of my 1960 Matchless on Mobile1 fully synthetic for as long as I can remember. My Hornet is currently sitting on just under 70k, doesn't burn a drop between services, and I've never had to touch the valve train. My SV has around 20k on it, all of which have been pretty much flat out as it doesn't get ridden any other way.... same story as the Hornet. Oh and they are both still on their original clutches.

Cool

[SV650rules]

Opie oils do Castrol Power 1 4T fully synth 4litre for £32 with free shipping UK mainland, for me that is cheap enough.

[R1ffR4ff]

double post

[R1ffR4ff]

Nah.When I've used up me Motul I'll be buying this<BFG>

http://www.ebay.co.uk/itm/20L-Semi-S...IAAOSwNSxVcXAL