vauxhall fully synth oil - any good ??
22 January 2005, 05:36 PM
#1
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vauxhall fully synth oil - any good ??
anyone know how good the vauxhall fully synthetic oil is in a scooby ??
ive allways used there semi synth in my vauxhalls with no troubles.
the stuff in question is rated at 5W40 and im wondering wether its good enough for the scooby or wether im better spending the extra ££ on motul / castrol etc.
cheers
Stu
ive allways used there semi synth in my vauxhalls with no troubles.
the stuff in question is rated at 5W40 and im wondering wether its good enough for the scooby or wether im better spending the extra ££ on motul / castrol etc.
cheers
Stu
22 January 2005, 07:04 PM
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well i can get the stuff via my vauxhall tradeclub account at about £11+vat for 5 litres. i was thinking its cheaper for me to change oil / filter every 3000miles with the vaux stuff than 7500 with the more expensive stuff.
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24 January 2005, 09:05 AM
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so is it worth me paying extra £30 a tub for better stuff or will filling with the vaux stuff and changing it every 2500-3000 miles suffice ??
24 January 2005, 09:22 AM
#11
It depends how you look at it.
I decent synth will cost around 3 times the cost but will be fine in the engine for 9000 miles as it doesn't thermally breakdown as quickly. Added to this it will give superior overall protection.
Personally it is my opinion, given that the costs even out , using cheap oils is a false economy. Use an ester based synthetic for additional benefits.
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.
Cheers
Simon
I decent synth will cost around 3 times the cost but will be fine in the engine for 9000 miles as it doesn't thermally breakdown as quickly. Added to this it will give superior overall protection.
Personally it is my opinion, given that the costs even out , using cheap oils is a false economy. Use an ester based synthetic for additional benefits.
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.
Cheers
Simon
24 January 2005, 09:39 AM
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The oil is intended for Vauxhalls, not subaru imprezas. Personally, i'd rather spend 30 or 40 squid on descent oil such mobil 1. Then again, i do use optimax exclusivly, so I spose, if you like using supermarket fuel because its cheap, you're probably going to use cheap and nasty oil aswell! 
24 January 2005, 02:40 PM
#15
Originally Posted by oilman
I think a Vauxhall is a different proposition to Scoobs mechanically and stress wise, I would use a decent fully synthetic. Check the Group Buys section.
Cheers
Simon
Cheers
Simon
JohnD
24 January 2005, 02:47 PM
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I run my Vauxhall XE engine on the same oil as the g/f's Impreza - Motul 300v
It may be a bit overkill, but TBH i wouldn't even put the Vauxhall oil in my lawnmower
IMHO cheap oil is a false economy
It may be a bit overkill, but TBH i wouldn't even put the Vauxhall oil in my lawnmower
IMHO cheap oil is a false economy
Last edited by FB Tuning; 24 January 2005 at 02:53 PM.
26 January 2005, 04:40 PM
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Do subaru not specifie a 10-40 semi syn oil??
if the oil is in a standard ish subaru and is being changed every 4/5k i cannot see you having any problems at all
ive stripped impreza engines that have made 280bhp mildly modded with 110k on the clock and it was mint inside-reason i stripped it was piston oil scraper on no3 had relaxed!!! so they dont seem to ware much anyways
so IMHO i cannot see you having any problems with less than 280bhp unless you are thrashing it at trackdays etc
if the oil is in a standard ish subaru and is being changed every 4/5k i cannot see you having any problems at all
ive stripped impreza engines that have made 280bhp mildly modded with 110k on the clock and it was mint inside-reason i stripped it was piston oil scraper on no3 had relaxed!!! so they dont seem to ware much anyways
so IMHO i cannot see you having any problems with less than 280bhp unless you are thrashing it at trackdays etc
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