View Poll Results: What viscosity oil do you use in your scooby?
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What viscosity oil do you use in your scooby
28 January 2005, 12:28 PM
#1
What viscosity oil do you use in your scooby
Ok, there are many oil debates on these boards with regards to this brand is better than that one etc.
It would be useful to poll what viscosities people use as this is technically more important than the brand so, here goes!
Cheers
Simon
It would be useful to poll what viscosities people use as this is technically more important than the brand so, here goes!
Cheers
Simon
oil
28 January 2005, 01:47 PM
#6
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For years in the old WRX I had I used Mobil1 5W50 from France - £18 for 4 litres from the hypermarket.
I then bought a job lot of Castrol RS 10W60 and used that in the scoob and my Westfield.
Now that its run out I've just bought some Silkolene ProS 10W50, from erm you Simon!
I then bought a job lot of Castrol RS 10W60 and used that in the scoob and my Westfield.
Now that its run out I've just bought some Silkolene ProS 10W50, from erm you Simon!
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28 January 2005, 01:56 PM
#8
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Originally Posted by oilman
My advice here is free to 
Cheers
Simon
Cheers
Simon
Runs V.Nice on the Silkolene Pro S aswell.
Top man!!
28 January 2005, 02:04 PM
#10
Originally Posted by Peanuts
motul 300v 15w50 for me, although I have concerns about the cold starts in the recent mornings, 2 ->4degs.C on the temp display 
Think Pro S is next.... Simon, nice price please
Tony.
28 January 2005, 06:10 PM
#14
Always used 0W-40 mobil 1 ever since I had the car, which is coming upto 8 years and 80k miles-standard car until a few months ago- now with full decat. I have no problems or any unusual noises- makes the same noises it did when new.
I will be upping the power towards 300 bhp would it be recommended to change the viscosity to say 5w-40?
Andy
I will be upping the power towards 300 bhp would it be recommended to change the viscosity to say 5w-40?
Andy
30 January 2005, 07:13 PM
#21
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I think Chrispurvis, Like me uses the MOTORSPORT variant of the Mobil 1 which is around the 15w-40/50 mark. £35 squids in halfrauds.
Runing nearly 400bhp in mine, thrash the livin daylights out of it, no problems so far.
Andy
Runing nearly 400bhp in mine, thrash the livin daylights out of it, no problems so far.
Andy
30 January 2005, 08:24 PM
#22
As Fuzz above ( Hi Andy, hows it going! ), over 360 horses here, was using Castrol RS 10-60, but reading Oilman's previous thread looking for a 5-40 or 10-40 oil, fully synthetic, maybe Motul 300V competition or the Silkolene Pro S stuff. Any recommendations on best suited for my classic wagon?
At a good price too.
At a good price too.
... **** your catching me up.. best do some more mods 
31 January 2005, 12:28 AM
#25
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Thats correct fuzz, mobil 1 15w50 motorsport. Running a stage 1 sti 4 ( 305bhp ) with 68000 miles. No problems in the 8000miles in which I have owned it. (wheres that piece of wood!) 
31 January 2005, 03:25 AM
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I use Mobil 1 Super S 10W40 (change every 2500 miles) but I'm considering to upgrade for 0W-50 Mobil 1 SuperSyntc. I've never seen this product before but a friend of mine told me that he bought 2 x 4lt 0W-50 Mobil1 SuperSyntc. I couldnt see this product even their website, does anyone know this product?
I'll no more use 10W40. I think it would be nice to see oil pressure values of different oils. Here my specs
Standart MY98
Cold Start idle: 100 psi
Hot idle: 30 psi
Cruise: 80 psi (@3300rpm)
WOT: 90-100 psi (@5500-7000rpm not sure)
I'll no more use 10W40. I think it would be nice to see oil pressure values of different oils. Here my specs
Standart MY98
Cold Start idle: 100 psi
Hot idle: 30 psi
Cruise: 80 psi (@3300rpm)
WOT: 90-100 psi (@5500-7000rpm not sure)
31 January 2005, 11:40 AM
#29
Hi Oilman (simon),
would you please explain the difference between mobil1 and motul 300v. See their respective specifications. To the layman there doesnt seem to be much difference between these two oils.
mobil 1 0w-40
Viscosity, ASTM D 445
cSt @ 40º C 80
cSt @ 100º C 14.3
Density @15º C kg/l, ASTM D 4052 0.855
Viscosity Index, ASTM D 2270 187
Sulfated Ash, wt%, ASTM D 874 1.2
HTHS Viscosity, mPa·s @ 150ºC ASTM D 46833.6
Pour Point, ºC, ASTM D 97 -54
Flash Point, ºC, ASTM D 92 236
Andy
would you please explain the difference between mobil1 and motul 300v. See their respective specifications. To the layman there doesnt seem to be much difference between these two oils.
PROPERTIES of motul 300v 5w-40
Viscosity grade SAE J 300 5W-40
Density at 15°C (59°F) ASTM D1298 0.905
Viscosity at100°C (212°F) ASTM D445 13.8 mm²/s
Viscosity at 40°C (104°F) ASTM D445 80.8 mm²/s
Viscosity Index ASTM D2270 176
HTHS viscosity at150°C (302°F) ASTM D4741 4.51 mPa.s
Pour point ASTM D97 -36°C / -33°F
Flash point ASTM D92 216°C / 420°F
TBN ASTM D 2896 10.9 mg KOH/g
Typical Properties
mobil 1 0w-40
Viscosity, ASTM D 445
cSt @ 40º C 80
cSt @ 100º C 14.3
Density @15º C kg/l, ASTM D 4052 0.855
Viscosity Index, ASTM D 2270 187
Sulfated Ash, wt%, ASTM D 874 1.2
HTHS Viscosity, mPa·s @ 150ºC ASTM D 46833.6
Pour Point, ºC, ASTM D 97 -54
Flash Point, ºC, ASTM D 92 236
Andy
Last edited by andy97; 31 January 2005 at 11:51 AM.
31 January 2005, 11:50 AM
#30
The first difference is cold crank viscosity.
Mobil1 is 0w Motul 300V is 5w.
They are both sae 40's when hot.
The main difference is the basestocks. Mobil use PAO (poly alpha olefins) and Motul use a blend which is 80% pao and 20% esters.
Esters provide an extra benefit in that they are surface active (electrostatically attracted to metal surfaces) polar in laymans terms, pao's are inert.
The best way of describing the benefits is best left to the chemists:
Esters
All jet engines are lubricated with synthetic esters, and have been for 50 years, but these expensive fluids only started to appear in petrol engine oils about 20 years ago. Thanks to their aviation origins, the types suitable for lubricants (esters also appear in perfumes; they are different!) work well from –50 degC to 200 degC, and they have a useful extra trick.
Due to their structure, ester molecules are “polar”; they stick to metal surfaces using electrostatic forces. This means that a protective layer is there at all times, even during that crucial start-up period. This helps to protect cams, gears, piston rings and valve train components, where lubrication is “boundary” rather than “hydrodynamic”, i.e. a very thin non-pressure fed film has to hold the surface apart. Even crank bearings benefit at starts, stops or when extreme shock loads upset the “hydrodynamic” film.
Silkolene PRO S 5w-40 is also a pao/ester blend.
Hope this helps.
Cheers,
Simon
Mobil1 is 0w Motul 300V is 5w.
They are both sae 40's when hot.
The main difference is the basestocks. Mobil use PAO (poly alpha olefins) and Motul use a blend which is 80% pao and 20% esters.
Esters provide an extra benefit in that they are surface active (electrostatically attracted to metal surfaces) polar in laymans terms, pao's are inert.
The best way of describing the benefits is best left to the chemists:
Esters
All jet engines are lubricated with synthetic esters, and have been for 50 years, but these expensive fluids only started to appear in petrol engine oils about 20 years ago. Thanks to their aviation origins, the types suitable for lubricants (esters also appear in perfumes; they are different!) work well from –50 degC to 200 degC, and they have a useful extra trick.
Due to their structure, ester molecules are “polar”; they stick to metal surfaces using electrostatic forces. This means that a protective layer is there at all times, even during that crucial start-up period. This helps to protect cams, gears, piston rings and valve train components, where lubrication is “boundary” rather than “hydrodynamic”, i.e. a very thin non-pressure fed film has to hold the surface apart. Even crank bearings benefit at starts, stops or when extreme shock loads upset the “hydrodynamic” film.
Silkolene PRO S 5w-40 is also a pao/ester blend.
Hope this helps.
Cheers,
Simon