what grade
15 June 2007, 01:12 PM
#31
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The point I am trying to get across, and it's tough when I am as qualified as I am to make it really simple.
I have no issue with those wishing to put over-specced Oil in their engines just please stop saying that £15 Oil is crap ....... it is simply untrue - it is perfectly acceptable to use it in your Impreza, WITHOUT ANY DAMAGE OR LOSS AT ALL.
Therefore, by definition, to pay more than £15 is to pay for a spec you will NEVER call on!
And, therefore, a complete and utter waste of money .....
I have no issue with those wishing to put over-specced Oil in their engines just please stop saying that £15 Oil is crap ....... it is simply untrue - it is perfectly acceptable to use it in your Impreza, WITHOUT ANY DAMAGE OR LOSS AT ALL.
Therefore, by definition, to pay more than £15 is to pay for a spec you will NEVER call on!
And, therefore, a complete and utter waste of money .....
15 June 2007, 01:16 PM
#32
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The point I am trying to get across, and it's tough when I am as qualified as I am to make it really simple.
I have no issue with those wishing to put over-specced Oil in their engines just please stop saying that £15 Oil is crap ....... it is simply untrue - it is perfectly acceptable to use it in your Impreza, WITHOUT ANY DAMAGE OR LOSS AT ALL.
Therefore, by definition, to pay more than £15 is to pay for a spec you will NEVER call on!
And, therefore, a complete and utter waste of money .....
I have no issue with those wishing to put over-specced Oil in their engines just please stop saying that £15 Oil is crap ....... it is simply untrue - it is perfectly acceptable to use it in your Impreza, WITHOUT ANY DAMAGE OR LOSS AT ALL.
Therefore, by definition, to pay more than £15 is to pay for a spec you will NEVER call on!
And, therefore, a complete and utter waste of money .....
well you could argue that outting £10 tyres on your scoob is not gonna do any damage to it, but you'd be a fool to go that cheap
15 June 2007, 01:20 PM
#33
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No one is saying that the comma stuff is cr*p. We're just saying that there IS better oil out there, end of. Can we make this the last oil thread that contribute on Pete, getting rather boring now. 
15 June 2007, 02:00 PM
#34
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Higher Specced Oil - yes.
Better for 99% of Imprezas - no.
Paying for what is not needed is folly.
End of Oil discussion - unless, of course, someone disagrees with my logic
Better for 99% of Imprezas - no.
Paying for what is not needed is folly.
End of Oil discussion - unless, of course, someone disagrees with my logic
15 June 2007, 02:02 PM
#35
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Where the hell did you get 99% from? 
Do you keep a record of every impreza, its spec and usage? More conjecture on your part Pete. As predictable as ever.
Do you keep a record of every impreza, its spec and usage? More conjecture on your part Pete. As predictable as ever.
15 June 2007, 02:41 PM
#36
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15 June 2007, 05:35 PM
#41
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OK, those who pay silly money for Oil .....
"What do you believe it does for you over and above the standard oil"?
Don't say 'better' - I want to hear what you think this magic liquid does ...... 'longevity' isn't acceptable either, as my car is 7 years old with 78,000miles on and is as sweet as a nut (better than most examples on here running with silly priced oil).
Longer spells between Services could be an acceptable benefit - but, I would feel really uneasy going beyond 6 months without an Oil change.
For the standard Impreza, not Raced or Rallied, there is absolutely no benefit - which counts - by paying silly money for high specced oil ....
So, I'm genuinely interested, what do you believe it gives you over and above a 10W-40 Semi of the Spec Subaru recommend?
"What do you believe it does for you over and above the standard oil"?
Don't say 'better' - I want to hear what you think this magic liquid does ...... 'longevity' isn't acceptable either, as my car is 7 years old with 78,000miles on and is as sweet as a nut (better than most examples on here running with silly priced oil).
Longer spells between Services could be an acceptable benefit - but, I would feel really uneasy going beyond 6 months without an Oil change.
For the standard Impreza, not Raced or Rallied, there is absolutely no benefit - which counts - by paying silly money for high specced oil ....
So, I'm genuinely interested, what do you believe it gives you over and above a 10W-40 Semi of the Spec Subaru recommend?
15 June 2007, 06:03 PM
#44
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Answer the question in post number 41 .... it should be really easy, after all, you don't just put expensive Oil in your engines without an absolute over-riding benefit you can point to - over and above the Oil Subaru recommend ...
....................................... Or do you??
I believe that most pay silly money for Oil because someone, somewhere, on a BBS once, in 1997, said to someone that - someone they know knows someone who gets their hair done in a hairdressers, the salon of which is next door to an Oil Distrubutor who sells really expensive Oils at huge profits, the Oil Distributor sales Director came in to have his hair done, and, he said that his mate once knew a fella in 1936 who used cheaper Oil and their engine blew up - never use cheap oil
.................. and you all follow like sheep
....................................... Or do you??
I believe that most pay silly money for Oil because someone, somewhere, on a BBS once, in 1997, said to someone that - someone they know knows someone who gets their hair done in a hairdressers, the salon of which is next door to an Oil Distrubutor who sells really expensive Oils at huge profits, the Oil Distributor sales Director came in to have his hair done, and, he said that his mate once knew a fella in 1936 who used cheaper Oil and their engine blew up - never use cheap oil
.................. and you all follow like sheep
15 June 2007, 06:30 PM
#45
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Maybe some of the more expensive oils contain additives that help to prevent breakdown of the liquid under more driving conditions like thrashing and traffic jams. Maybe they help when the engine is cold. Maybe they prevent sludging and hydroscopic actions. Maybe they do not suffer so bad from carbon build up or petrol contamination.
Of course they also might be exactly the same as the cheaper stuff. Unless you have a laboratory you may never know. Yes use the cheaper oil, but change it more often and you should be fine most of the time. Not a problem really. If you feel better using a more expensive one then that is ok too. Personal choice. I use fully synthetic Millers in my Hawkeye.
In my humble opinion no-one here is completly wrong, but then I only have 32 years experience in engineering.
Of course they also might be exactly the same as the cheaper stuff. Unless you have a laboratory you may never know. Yes use the cheaper oil, but change it more often and you should be fine most of the time. Not a problem really. If you feel better using a more expensive one then that is ok too. Personal choice. I use fully synthetic Millers in my Hawkeye.
In my humble opinion no-one here is completly wrong, but then I only have 32 years experience in engineering.
15 June 2007, 07:10 PM
#46
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Maybe some of the more expensive oils contain additives that help to prevent breakdown of the liquid under more driving conditions like thrashing and traffic jams. Maybe they help when the engine is cold. Maybe they prevent sludging and hydroscopic actions. Maybe they do not suffer so bad from carbon build up or petrol contamination.
Of course they also might be exactly the same as the cheaper stuff. Unless you have a laboratory you may never know. Yes use the cheaper oil, but change it more often and you should be fine most of the time. Not a problem really. If you feel better using a more expensive one then that is ok too. Personal choice. I use fully synthetic Millers in my Hawkeye.
In my humble opinion no-one here is completly wrong, but then I only have 32 years experience in engineering.
Of course they also might be exactly the same as the cheaper stuff. Unless you have a laboratory you may never know. Yes use the cheaper oil, but change it more often and you should be fine most of the time. Not a problem really. If you feel better using a more expensive one then that is ok too. Personal choice. I use fully synthetic Millers in my Hawkeye.
In my humble opinion no-one here is completly wrong, but then I only have 32 years experience in engineering.
16 June 2007, 01:18 PM
#48
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16 June 2007, 01:29 PM
#51
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That nobody can prove. Who do you work for Pete? What position do you hold? Anyone we can call to put this issue to bed? Or do you not have a boss?
Last edited by Gear Head; 16 June 2007 at 01:31 PM.
16 June 2007, 01:57 PM
#53
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Give me a name I can ring to find out about you?
What position do you hold at work?
Which side do you hang?
----------------------------------------
Everyone knows I am a consultant at AWE plc ... it's no secret.
Now, your turn to answer.
Tick, Tick, Tick ......
16 June 2007, 01:59 PM
#54
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MIT (Marine & Industrial Transmissions) Marine and Industrial Transmissions Ltd - Supply Marine Transmissions and Twin Disc Products
Pos: Technical Advisor
Your point?
Pos: Technical Advisor
Your point?
16 June 2007, 02:00 PM
#55
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My profile is that I am the Director of a successful engineering company with contracts throughout Europe. I have worked in both the automotive and aviation world. The latter being the more challenging engineering wise. I hold many engineering qualifications and provide my services as a consultant in engineering quality control. All of my staff have more than 30 years engineering experience (except my secretary, who only has 20 years). I feel I am pretty well qualified to comment on this subject.
I would also like to point out that length of service is no proof of knowledge, but without knowing you, PS, that is not my judgement.
The use of lubricants is a very subjective topic. Most car manufacturers will have a contract with one provider, as I do. Now although the lubricant will be perfectly acceptable for use in your engine, it does not neccessarily mean that it is the best. Price is not always a good indicator either. As years go by so there are improvements in lubricant performance, as there is with engines. If you want to be kind to your car then you will consider these. If you want to be very kind then you will change oil far more often than suggested. The handbooks are the minimum requirements to keep your vehicle in tip top condition during normal use. In damp or dusty conditions I change my oil far more often, as indeed we do in aircraft operating in different conditions.
The answer to the initial question has got to be buy the best oil you can afford and operate your vehicle sensibly. Ask your local Subaru dealer what grade they recommend then go and make your choice. An older engine will need a different grade than a newer one due to wear anyway. My WRX 06 plate Hawkeye has the following recommended grades:
API classification GL-5 at 85W for -30 to >45 degrees or 75W/90 for below -30 to > 50 degrees. The warning is never to use oil from more than one manufacturere as each uses a different base oil and additives.
I am using Millers CFS 10W/60 with three esters.
I hope this is helpful.
I would also like to point out that length of service is no proof of knowledge, but without knowing you, PS, that is not my judgement.
The use of lubricants is a very subjective topic. Most car manufacturers will have a contract with one provider, as I do. Now although the lubricant will be perfectly acceptable for use in your engine, it does not neccessarily mean that it is the best. Price is not always a good indicator either. As years go by so there are improvements in lubricant performance, as there is with engines. If you want to be kind to your car then you will consider these. If you want to be very kind then you will change oil far more often than suggested. The handbooks are the minimum requirements to keep your vehicle in tip top condition during normal use. In damp or dusty conditions I change my oil far more often, as indeed we do in aircraft operating in different conditions.
The answer to the initial question has got to be buy the best oil you can afford and operate your vehicle sensibly. Ask your local Subaru dealer what grade they recommend then go and make your choice. An older engine will need a different grade than a newer one due to wear anyway. My WRX 06 plate Hawkeye has the following recommended grades:
API classification GL-5 at 85W for -30 to >45 degrees or 75W/90 for below -30 to > 50 degrees. The warning is never to use oil from more than one manufacturere as each uses a different base oil and additives.
I am using Millers CFS 10W/60 with three esters.
I hope this is helpful.
16 June 2007, 02:09 PM
#56
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Pete,
The most important thing when selecting an oil is if you're happy with it's ability to perform in your engine, under whatever conditions that you subject it to. Now, you don't know how people drive and as has been said before Subaru's recomendations are a minimum requirement.
If you're happy with £15 oil from whatever manufacturer then that's fine, but others may not be and IF their engine lets go they want to know that the oil they've used is not a factor in the failure.
Perhaps we should have a 'What oils not to use' thread instead then there maybe some agreement.
The most important thing when selecting an oil is if you're happy with it's ability to perform in your engine, under whatever conditions that you subject it to. Now, you don't know how people drive and as has been said before Subaru's recomendations are a minimum requirement.
If you're happy with £15 oil from whatever manufacturer then that's fine, but others may not be and IF their engine lets go they want to know that the oil they've used is not a factor in the failure.
Perhaps we should have a 'What oils not to use' thread instead then there maybe some agreement.
16 June 2007, 02:10 PM
#57
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16 June 2007, 02:14 PM
#58
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I am not saying that someone - if they wish - does NOT put expensive Oil into their engine.
I'm simply saying that they will never use the properties for which they have paid for and, therefore, are wasting their money.
But, not everyone has my knowledge and skillset, so they don't know - and the fear of an engine blowing up means they do whatever some Oil salesman tells them to.
I'm simply saying that they will never use the properties for which they have paid for and, therefore, are wasting their money.
But, not everyone has my knowledge and skillset, so they don't know - and the fear of an engine blowing up means they do whatever some Oil salesman tells them to.
16 June 2007, 02:21 PM
#59
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I am not saying that someone - if they wish - does NOT put expensive Oil into their engine.
I'm simply saying that they will never use the properties for which they have paid for and, therefore, are wasting their money.
But, not everyone has my knowledge and skillset, so they don't know - and the fear of an engine blowing up means they do whatever some Oil salesman tells them to.
I'm simply saying that they will never use the properties for which they have paid for and, therefore, are wasting their money.
But, not everyone has my knowledge and skillset, so they don't know - and the fear of an engine blowing up means they do whatever some Oil salesman tells them to.
16 June 2007, 02:27 PM
#60
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