A bit odd - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

russellw · 05-28-2003, 05:25

While waiting an extra night for my new car, I took the owners manual home for a quiet read.
Buried deep in the specs was a recommendation for the oil as being Mobil1 0W-40.

Now call me stupid but it was always my belief that oil with a viscocity of zero was an impossibility - viscocity being a measure that is based around water which has a viscocity of 1.

Maybe this oil was developed for LS1's. If you have an invisible oil when it's cold (with zero viscocity it wouldn't stay on the dipstick anyway) there would be no way of measuring oil loss.

Cheers
Russ

Mr Sparkle · 05-28-2003, 05:29

Quite obvious - by definition it must be *thinner* than water at "cold temperature"

Makes perfect sense

rod · 05-28-2003, 05:34

greetings all
we were discussing this at work today as i saw it on the filler cap of my pursuit that i am due to pick-up tomorrow ( thursday ) at least we will not get the cold rattleeeeeeeee that the commies suffer from
regards
rod

Mr Jucy · 05-28-2003, 07:16

A bit odd too that they recomend mobil when there race cars bare Castrol signage

Mr Sparkle · 05-28-2003, 15:39

Quote:

Originally posted by Mr Jucy
A bit odd too that they recomend mobil when there race cars bare Castrol signage

Bah - sponsorship schmosorship... Castrol only pays for signage, not for factory warrantied endorsement!

If Mobil-1 is the best oil, then I'll use it... when it comes to consumables, it's pretty pharken silly to be "brand loyal" IMO!!

Mr Jucy · 05-28-2003, 23:58

No doubt I'd always put whatever oil is best for the car in it but I would have imagined that Castrol would have tied in some sort of supply contract with the deal

SPALDING GREEN · 05-29-2003, 03:55

Isn't viscosity measured by pouring the oil through a hole of a certain size & timing how long it takes for a set amount to flow & then the oil can be graded?

shaft · 05-29-2003, 16:24

The oil in question i think is Mobil1 Tri-synthetic. It wears the gold lid.

Fordhead · 05-30-2003, 06:44

Quote:

Originally posted by SPALDING GREEN
Isn't viscosity measured by pouring the oil through a hole of a certain size & timing how long it takes for a set amount to flow & then the oil can be graded?

There are a few ways of measuring oil viscosity , but from memory , I think the standard is having oil in a container , and a blender type device . The shaft is then spun at a set speed in the oil to measure the shearing rate. Thinner oils require less power to spin than the thicker oils . The viscosity level of the oil is then worked out from how much power is consumed to spin the shaft at a set speed in different grade oils .

Don't know if this test still applies these days .