15w/40 and all that mumbo jumbo

[likeitorlumpit]

We had a check round all the manuals at the weekend and find we need 5 different oil viscocities for our machines= a pain.

A friend who is a fitter (very experienced) says his firm use just one= 15w/40 for everything including diesels.

Is this a good overall policy. I remember when multipurpose compost arrived on the scene and everyone was sceptical but now thats usually all you buy so is it time to go universal on oil.

[likeitorlumpit]

We had a check round all the manuals at the weekend and find we need 5 different oil viscocities for our machines= a pain.

A friend who is a fitter (very experienced) says his firm use just one= 15w/40 for everything including diesels.

Is this a good overall policy. I remember when multipurpose compost arrived on the scene and everyone was sceptical but now thats usually all you buy so is it time to go universal on oil.

[likeitorlumpit]

We had a check round all the manuals at the weekend and find we need 5 different oil viscocities for our machines= a pain.

A friend who is a fitter (very experienced) says his firm use just one= 15w/40 for everything including diesels.

Is this a good overall policy. I remember when multipurpose compost arrived on the scene and everyone was sceptical but now thats usually all you buy so is it time to go universal on oil.

[treequip]

It depends on the engine, some will take severe umbridge at lesser quality oils

[treequip]

It depends on the engine, some will take severe umbridge at lesser quality oils

[treequip]

It depends on the engine, some will take severe umbridge at lesser quality oils

[TimberCutterDartmoor]

15W40 does not denote quality, rather viscocity. The viscocity of that oil however will shear and change according to the quality, duty cycle etc.

 

You can not use a CI oil in an SI engine without causing plug fouling.

 

What are the various machines? List them and I will endevour to assist...

 

[TimberCutterDartmoor]

15W40 does not denote quality, rather viscocity. The viscocity of that oil however will shear and change according to the quality, duty cycle etc.

 

You can not use a CI oil in an SI engine without causing plug fouling.

 

What are the various machines? List them and I will endevour to assist...

 

[TimberCutterDartmoor]

15W40 does not denote quality, rather viscocity. The viscocity of that oil however will shear and change according to the quality, duty cycle etc.

 

You can not use a CI oil in an SI engine without causing plug fouling.

 

What are the various machines? List them and I will endevour to assist...

 

[likeitorlumpit]

15W40 does not denote quality, rather viscocity. The viscocity of that oil however will shear and change according to the quality, duty cycle etc.

 

You can not use a CI oil in an SI engine without causing plug fouling.

 

What are the various machines? List them and I will endevour to assist...

 

 

Yes- I appreciate the viscocity thing

First number is the number of minutes to go through a filter hot

the second is how long cold.

Well thats as I understand it

My issue was with having so many options for different viscocities with different machines.

We have 2 Stiga mowers petrol 25hp vangard engines

Micro JCB

Timberwolf chipper 150mm Kubota diesel engine.

Various small petrol mowers from Honda/hayter/stihl all less than 6hp

Small generator

Various other small stuff but the main ones are above.

It would be great to just use one oil for all.(tonguetwister)

I guess its hard to specify an oil for temps from -10 to +35 (cold start) and a mid range would seem to cover all bases.