Mobil 1 very cheap supplier
- Thread starter Neil Haughey
- Start date
Marlin,
15W50 is not the right grade for the Boxster... [
]
It's fine for 944's though.
15W50 is not the right grade for the Boxster... [
]It's fine for 944's though.
marlin
New member
ORIGINAL: Mark Bennett
Marlin,
15W50 is not the right grade for the Boxster... [
It's fine for 944's though.
Shit have to pour it into my Nissan, how about a 996 Turbo, funny you mention this I had just pressed the pay key and thought should that be 5w,or should it be 0 [
]Life is a drag
pauljmcnulty
Active member
Hi Colin,
I was told the same about using semi-synth unless a turbo, but the recent thread on this seemed to prove this advice flawed.
Interestingly, I've been told by a couple of seperate specialists that the one oil not to use is magnatec.....
Hi,
Magantec is a semi synthetic oil, which if I understand the rules correctly means that it can contain up to 70% mineral oil and only 30% actual synthentic (I'm not saying this is the actual mix, just that is how it could be made up)
Also the level of Esters - the components that give the "cling factor" is actually very low
Personally oil is one thing I don't mind spending money on - we have access to reasonably priced synthetic oil, which is designed in a lab to do exactly the job we want it to (rather than being a brew of dead vegetation chemicals) so thats what I use
Even if synthetics only provide a fraction more protection (and I think they provide a lot more) then at least if my engine has a problem, then I know it is not down to the oil
If you look at all the oils approved by Porsche there are only two semi-synthetics on the list
I can possibly understand a specialist recommending a thicker oil than standard as an engine wears, but I cannot understand the principle of recommending a lower quality oil of the same viscocity for an older engine - I would have thought that the older the engine, the more protection it needed, as things wear towards the edge of their tolerances.
My 2p
Magantec is a semi synthetic oil, which if I understand the rules correctly means that it can contain up to 70% mineral oil and only 30% actual synthentic (I'm not saying this is the actual mix, just that is how it could be made up)
Also the level of Esters - the components that give the "cling factor" is actually very low
Personally oil is one thing I don't mind spending money on - we have access to reasonably priced synthetic oil, which is designed in a lab to do exactly the job we want it to (rather than being a brew of dead vegetation chemicals) so thats what I use
Even if synthetics only provide a fraction more protection (and I think they provide a lot more) then at least if my engine has a problem, then I know it is not down to the oil
If you look at all the oils approved by Porsche there are only two semi-synthetics on the list
I can possibly understand a specialist recommending a thicker oil than standard as an engine wears, but I cannot understand the principle of recommending a lower quality oil of the same viscocity for an older engine - I would have thought that the older the engine, the more protection it needed, as things wear towards the edge of their tolerances.
My 2p
I have to be honest and say I'm not sure why these recommendations keep coming out from the Independent Specialists
The advantages of synthetic oils are well known and not limited to a particular brand, so it is not all marketing hype. I'm not sure if it is part of their "Cheaper than an OPC" ethos - the cost of the oil is significant in a 911 service []
My indie does have a big sign in his workshop saying "Synthetic oils only for cars from 1990 onwards"
Obviously most modern oils will give the engine a good level of protection, the synthetics just do it better for longer. One question I do ask is on what basis that they say there are no problems with the cheaper oils - unless you regularly strip down engines and see the condition of the internals - gumming, sludge etc you don't know exactly what the status is. Even if you do this, much of the difference in internal condition could be down to differing driving styles and conditions - town driving vs motorways etc
The only real way to tell is to have two cars filled with the semi and fully synthetic oils, and then driven in the same manner for a relevant distance, and then have the oil analysed for condition - I don't see many independents carrying out these tests []
One thing to think about is that a lot of indepedents don't recommend synthentic oil, as it could cause oil leaks due to flushing out all the gumming that has been holding the seals and gaskets in place for the last few years - I would hold this up as proof of the superior cleaning capabilities of most synthetics......
again my 2p - your engine seems to be holding out quite well, so what do I know []
Pete
The advantages of synthetic oils are well known and not limited to a particular brand, so it is not all marketing hype. I'm not sure if it is part of their "Cheaper than an OPC" ethos - the cost of the oil is significant in a 911 service [
]My indie does have a big sign in his workshop saying "Synthetic oils only for cars from 1990 onwards"
Obviously most modern oils will give the engine a good level of protection, the synthetics just do it better for longer. One question I do ask is on what basis that they say there are no problems with the cheaper oils - unless you regularly strip down engines and see the condition of the internals - gumming, sludge etc you don't know exactly what the status is. Even if you do this, much of the difference in internal condition could be down to differing driving styles and conditions - town driving vs motorways etc
The only real way to tell is to have two cars filled with the semi and fully synthetic oils, and then driven in the same manner for a relevant distance, and then have the oil analysed for condition - I don't see many independents carrying out these tests [
]One thing to think about is that a lot of indepedents don't recommend synthentic oil, as it could cause oil leaks due to flushing out all the gumming that has been holding the seals and gaskets in place for the last few years - I would hold this up as proof of the superior cleaning capabilities of most synthetics......
again my 2p - your engine seems to be holding out quite well, so what do I know [
]Pete
Posts made and opinions expressed are those of the individual forum members
Use of the Forum is subject to the Terms and Conditions
