Magnetic sump plug
I have no oil pressure guage - a big red light is sufficient.
I can tell you now, for nothing, that Subaru would fit these ..... IF they thought they would protect their engines, they do nothing, so they don't fit them.
To say that Subaru don't fit a parachute to help you slow down ... so they may also skip on a magnetic sump plug is laughable
Everyone has to choose what they believe to be important for their vehicles .... 99.9% of people wouldn't even know what one of these is - of the 0.1% remaining - only 0.0001% actually believe that they do anything other than empty your wallet!
I can tell you now, for nothing, that Subaru would fit these ..... IF they thought they would protect their engines, they do nothing, so they don't fit them.
To say that Subaru don't fit a parachute to help you slow down ... so they may also skip on a magnetic sump plug is laughable

Everyone has to choose what they believe to be important for their vehicles .... 99.9% of people wouldn't even know what one of these is - of the 0.1% remaining - only 0.0001% actually believe that they do anything other than empty your wallet!
I used to have a magnetic sump plug on my first car, a 1964 Volvo 122S, which I bought on 93k miles and thrashed to within an inch of its life when I used to rally it (it was sold on 225k miles). I used to change the oil every 3,000 miles and filter every 6,000 miles and that would always have some swarf (like metal filings) on the plug.
Whilst everything was steel in that engine, apart from the bearings, I never gave any thought as to where it was coming from but felt it was better to be attached to the sump plug and wiped off on each service than sitting on the bottom of the sump and potentially circulating.
Whilst everything was steel in that engine, apart from the bearings, I never gave any thought as to where it was coming from but felt it was better to be attached to the sump plug and wiped off on each service than sitting on the bottom of the sump and potentially circulating.
I had an Impreza for over 10 years, did over 100,000 miles in it ..... and serviced it myself from year 5 onwards.
I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.
Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.
Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
I had an Impreza for over 10 years, did over 100,000 miles in it ..... and serviced it myself from year 5 onwards.
I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.
Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.
Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
How the hell can you post that you would know if your engine was in trouble in any way through hearing/seeing or smelling

So you would know if your oil pump was down on pressure through your heightened senses would you
'I have worked on the leading edge of Technology and Engineering for many decades'
FFS assuming then you work for NASA? Or a professor at M.I.T? Or head of development at silicone valley?
I can't beleive people are arguing over a £10 sump plug, only on Scoobynet. If your happy seeing filings on your plug when doing an oil change then buy one.
FFS assuming then you work for NASA? Or a professor at M.I.T? Or head of development at silicone valley?
I can't beleive people are arguing over a £10 sump plug, only on Scoobynet. If your happy seeing filings on your plug when doing an oil change then buy one.
NASA is a very, very, close guess ......
It's not the £10 Sump Plug we are discussing really - it is the whole verbal claptrap that is spoken about these cars.
They are ordinary cars, with ordinary needs ... yes, they had a cult status which brings with it myths and untrues .... but, this is like the CockLink and 'Special' Oil Change proceedure all over again.
It's not the £10 Sump Plug we are discussing really - it is the whole verbal claptrap that is spoken about these cars.
They are ordinary cars, with ordinary needs ... yes, they had a cult status which brings with it myths and untrues .... but, this is like the CockLink and 'Special' Oil Change proceedure all over again.
'cocklink'..... LOL.
Only the other week I read a thread on here about a knocklink. Basically a chap filled his car up (was mapped on 99ron) and drove off a usual. He then noticed his knocklink lighting up like a Christmas tree under load and realized he must of put normal unleaded in or the super was not as super as advertised.
Had he not had that knocklink flashing up in his face to make him aware of knock he would of carried on as normal and 'could' of done some irreversible damage.
I do agree though Pete, some of the stuff we fit to/in our cars are sometimes overkill. But these are our pride and joy, I for one have spent enough money to ignite a divorce. So if fitting a gauge, monitor or even magnetic sump plug gives me piece of mind or even the visual knowledge that all is well then where's the issue.
Only the other week I read a thread on here about a knocklink. Basically a chap filled his car up (was mapped on 99ron) and drove off a usual. He then noticed his knocklink lighting up like a Christmas tree under load and realized he must of put normal unleaded in or the super was not as super as advertised.
Had he not had that knocklink flashing up in his face to make him aware of knock he would of carried on as normal and 'could' of done some irreversible damage.
I do agree though Pete, some of the stuff we fit to/in our cars are sometimes overkill. But these are our pride and joy, I for one have spent enough money to ignite a divorce. So if fitting a gauge, monitor or even magnetic sump plug gives me piece of mind or even the visual knowledge that all is well then where's the issue.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
I would be wary about fitting a pressure gauge if it means deleting the dash pressure warning light. I believe the light is a better way to diagnose pressure problems caused by things like a cracked oil feed pipe. The gauge takes some time to read the pressure on start up where as you can notice the light staying on longer on start up.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
I had an Impreza for over 10 years, did over 100,000 miles in it ..... and serviced it myself from year 5 onwards.
I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.
Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
I have ears and eyes and a nose to smell ..... I don't need gauges to tell me what's happening - I know whats happening.
Maybe the old boys like me have this skill and the kiddies haven't (so need mickey mouse devices to tell them that their engine is running, stalled, stopped)?
I find it a bit irritating that as one of the 'old boys' you come on here and spout your infinate wisdom and consider anyone who disagrees with you to be an idiot. You sometimes come up with some good sense but it's often the patronising way you put it that can be so annoying. Sadly, you've become a figure of fun but you've never taken the hint.
JohnD
NASA is a very, very, close guess ......
It's not the £10 Sump Plug we are discussing really - it is the whole verbal claptrap that is spoken about these cars.
They are ordinary cars, with ordinary needs ... yes, they had a cult status which brings with it myths and untrues .... but, this is like the CockLink and 'Special' Oil Change proceedure all over again.
It's not the £10 Sump Plug we are discussing really - it is the whole verbal claptrap that is spoken about these cars.
They are ordinary cars, with ordinary needs ... yes, they had a cult status which brings with it myths and untrues .... but, this is like the CockLink and 'Special' Oil Change proceedure all over again.
Joined: Apr 2002
Posts: 38,078
Likes: 310
From: The hell where youth and laughter go
I amazed nobody has mentioned the bypass valve that is fitted in every oil filter on every Subaru (and pretty much any car with a spin-on filter canister).
Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.
Get a can opener and take a filter apart if you don't belive me. Its not a proper full flow filter....thats why they are so small! This is also something ponder about when you use thicker oils.....(as the thicker it is, the harder it is to get through the filter media, so more likely it will open in extreme conditions).
Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.
Get a can opener and take a filter apart if you don't belive me. Its not a proper full flow filter....thats why they are so small! This is also something ponder about when you use thicker oils.....(as the thicker it is, the harder it is to get through the filter media, so more likely it will open in extreme conditions).
Last edited by ALi-B; Jul 2, 2012 at 08:01 AM.
I amazed nobody has mentioned the bypass valve that is fitted in every oil filter on every Subaru (and pretty much any car with a spin-on filter canister).
Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.
Get a can opener and take a filter apart if you don't belive me. Its not a proper full flow filter....thats why they are so small! This is also something ponder about when you use thicker oils.....(as the thicker it is, the harder it is to get through the filter media, so more likely it will open in extreme conditions).
Above a certain oil pressure, it pops open. So un-filtered oil is circulated through the engine.
Get a can opener and take a filter apart if you don't belive me. Its not a proper full flow filter....thats why they are so small! This is also something ponder about when you use thicker oils.....(as the thicker it is, the harder it is to get through the filter media, so more likely it will open in extreme conditions).
******* NASA, jog on Pete. Stick to space ships and leave the imprezas to us young ones hey
Joined: May 2003
Posts: 4,464
Likes: 0
From: Blackpool, Uk. Destination: Rev Limiter.


Then you need to look at what size of particle an oil filter will collect, and what components has that particle flowed through before it reaches the filtration medium?
Finally, what are the smaller particles doing to the engine that the filter cannot collect?
I look forward to your replies.
Joined: May 2003
Posts: 4,464
Likes: 0
From: Blackpool, Uk. Destination: Rev Limiter.
Certainly, Aluminium isn't a Ferrous metal .... and the bearing coatings are not either.
So, what particles will we be seeing on this magnet?
Also, what is the magnetic radius of the plug? I suspect that only particles within a few mm's of the plug will be attracted with enough power to be held
So, what particles will we be seeing on this magnet?
Also, what is the magnetic radius of the plug? I suspect that only particles within a few mm's of the plug will be attracted with enough power to be held
What type of engineering and technology were you involved with, the assembly of Legoland?!
Last edited by Evolution Stu; Jul 2, 2012 at 11:05 AM.
Get the feeling that many of the current S'net subscribers have come along since the heyday of PSLewis posts?
Pete is famous for his pontifications on subjects such as '**** oil change procedures' 'Cocklinks (Knocklink)' 'The stupidity of using oil costing more than £15 for 5litres' and many others. He's been the source of much amusement over the years and it seems he's lost none of his touch!
JohnD
Pete is famous for his pontifications on subjects such as '**** oil change procedures' 'Cocklinks (Knocklink)' 'The stupidity of using oil costing more than £15 for 5litres' and many others. He's been the source of much amusement over the years and it seems he's lost none of his touch!
JohnD
Last edited by Maz; Jul 2, 2012 at 11:04 AM.
I would be wary about fitting a pressure gauge if it means deleting the dash pressure warning light. I believe the light is a better way to diagnose pressure problems caused by things like a cracked oil feed pipe. The gauge takes some time to read the pressure on start up where as you can notice the light staying on longer on start up.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.
The one thing pslewis said that is valid regarding the magnetic sump plug is magnets coming away on cheap plugs and there being a possibility of it attaching itself to critical part of the engine.






