Omega Owners Forum - good news everyone

mick-1975 Senior Member Offline Posts: 592 nottingham Gender: Drives: 2.2 estate auto	Re: good news everyone Reply #15 - 07. Mar 2009 at 19:28 Omega man 2 wrote on 07. Mar 2009 at 19:06: VX1 wrote on 07. Mar 2009 at 18:36: Yes 15/40 is thicker than 10/40. Did you check the crankcase breather tube was clear? Paul Good thing to check that, its because of that little b*llocks that one of my conrods ended up over there somewhere ouch
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Omega_Man

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out the oxy!

Drives: Omega CDX 2.5 V6

Re: good news everyone
Reply #16 - 07. Mar 2009 at 19:46

mick-1975 wrote on 07. Mar 2009 at 19:28:

Omega man 2 wrote on 07. Mar 2009 at 19:06:

VX1 wrote on 07. Mar 2009 at 18:36:

Yes 15/40 is thicker than 10/40. Did you check the crankcase breather tube was clear?

Paul Thumbs Up!

Good thing to check that, its because of that little b*llocks that one of my conrods ended up over there somewhere Angry

ouch

All sorted now however Thumbs Up!

With my omega, if it breaks, it shall be fixed no matter what Cheesy

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mick-1975

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nottingham
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Drives: 2.2 estate auto

Re: good news everyone
Reply #17 - 07. Mar 2009 at 19:48

Omega man 2 wrote on 07. Mar 2009 at 19:46:

mick-1975 wrote on 07. Mar 2009 at 19:28:

Omega man 2 wrote on 07. Mar 2009 at 19:06:

VX1 wrote on 07. Mar 2009 at 18:36:

Yes 15/40 is thicker than 10/40. Did you check the crankcase breather tube was clear?

Paul Thumbs Up!

Good thing to check that, its because of that little b*llocks that one of my conrods ended up over there somewhere Angry

ouch

All sorted now however Thumbs Up!

With my omega, if it breaks, it shall be fixed no matter what Cheesy

same as mine , nothing better than getting spanners out on a good day . Thumbs Up!

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Abiton

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Re: good news everyone
Reply #18 - 07. Mar 2009 at 20:17

Guffer wrote on 07. Mar 2009 at 19:01:

VX1 wrote on 07. Mar 2009 at 18:14:

mick-1975 wrote on 07. Mar 2009 at 18:11:

markey mark wrote on 07. Mar 2009 at 18:08:

10/40 vaux semi syn Thumbs Up!

daft question but how does the grade work with the thickness ?? Embarrassed

I think its something like 10 is the thickness it is and the 40 is temp it is ok to as -40 i think. Someone else will be along soon to give accurate info

Paul Thumbs Up!

P.s I need to typr quicker Embarrassed

I always thought the numbers related to the viscocity of the oil at operating and room temp. So 10/40 would be thinner than 15/40 at operating temp but the same when cold. I could be mistaken though

Other way round I think, same viscosity at op. temp, 10 is runnier when cold (than 15).

The 10 indicates that it flows like a '10-weight' oil at cold temps, the 40 indicates that at operating temperature it behaves like a much thicker/heavier oil (although it isn't actually thicker than when cold, just not as thin as it would be if it behaved only like a 10-weight oil). It's the additives that allow it to have this 'multigrade' dual-personality. Confusing, huh? Grin

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« Last Edit: 07. Mar 2009 at 20:20 by Abiton »

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mick-1975

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nottingham
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Drives: 2.2 estate auto

Re: good news everyone
Reply #19 - 07. Mar 2009 at 20:38

Abiton wrote on 07. Mar 2009 at 20:17:

Guffer wrote on 07. Mar 2009 at 19:01:

VX1 wrote on 07. Mar 2009 at 18:14:

mick-1975 wrote on 07. Mar 2009 at 18:11:

markey mark wrote on 07. Mar 2009 at 18:08:

10/40 vaux semi syn Thumbs Up!

daft question but how does the grade work with the thickness ?? Embarrassed

I think its something like 10 is the thickness it is and the 40 is temp it is ok to as -40 i think. Someone else will be along soon to give accurate info

Paul Thumbs Up!

P.s I need to typr quicker Embarrassed

I always thought the numbers related to the viscocity of the oil at operating and room temp. So 10/40 would be thinner than 15/40 at operating temp but the same when cold. I could be mistaken though

Other way round I think, same viscosity at op. temp, 10 is runnier when cold (than 15).

The 10 indicates that it flows like a '10-weight' oil at cold temps, the 40 indicates that at operating temperature it behaves like a much thicker/heavier oil (although it isn't actually thicker than when cold, just not as thin as it would be if it behaved only like a 10-weight oil). It's the additives that allow it to have this 'multigrade' dual-personality. Confusing, huh? Grin

confusing is,nt the word. Grin

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