General Mile stone

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General Mile stone

Congrats on the high mileages! Definitely showing the folks like me who would have doubted the TwinAir's longevity, that with good use and maintenance, they can go as far as any engine! Engineering / engine design is something the Italians have down. I'd love to see one of these with a 1.2 FIRE 300k mileage, I'm banking on you guys to keep us updated! :)
 
Congrats on the high mileages! Definitely showing the folks like me who would have doubted the TwinAir's longevity, that with good use and maintenance, they can go as far as any engine! Engineering / engine design is something the Italians have down. I'd love to see one of these with a 1.2 FIRE 300k mileage, I'm banking on you guys to keep us updated! :)
Its true the engine has a limited life span. All this rot was started by testing that took place back when it was new. They ran a TA at max revs until it broke. It broke up at 125,000 miles being run at 6000 rpm. This developed into the story of short engine life. The TA unit may be a little delicate but if serviced and treated with a little care .one would expect the engine to do long service. I just wish parts were available for the uniair thing instead of its being a disposable item.
 
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Its true the engine has a limited life span. All this rot was started by testing that took place back when it was new. They ran a TA at max revs until it broke. It broke up at 125,000 miles being run at 6000 rpm. This developed into the story of short engine life. The TA unit may be a little delicate but if serviced and treated with a little care .one would expect the engine to do long service. I just wish parts were available for the uniair thing instead of its being a disposable item.
I suspect that given the inclination the UniAir module could be serviceable - certainly seals and the like. My understanding is that it is essentially a servo-hydraulic valve which likely includes some piezoelectric devices to trigger and control oil flow in a closed loop control system. Such systems require scrupulous cleanliness during assembly and the controllers are likely relatively expensive which would make DIY an unlikely proposition.

It would be interesting to know what the typical failure mode is - seals, worn cylinder bores or electronics. Maybe there are 3rd party refurbs out there?

There was a local Independent near me (retired now I believe) that used to race a Mito Multiair; the first job on the tuning list was to remove the Multiair unit and replace with mechanicals...
 
That is first class anymore photos tell us a wee bit more how long have you owned it
I've done 110k or so miles in it since getting it in 2017 with 70k on it. I do a lot of motorway miles and fitted a cruise control kit.
Its done well in that time, except for the clutch - it is now on its 3rd (130k then 175k). Its needed a turbo (130k) and an alternator (135k) and a coolant tank (155k) but everything else has been standard service and wear items (shocks/suspension arms/engine mounts/brakes/exhaust/battery/tyres/plugs/etc).
It snapped both its handbrake cables too when i stopped on a hill last week!
I do an oil+filter change every 10k (or close to) where it gets the cheapest 5w40 fully synth i can find (frequently the Asda one!)
 
I've done 110k or so miles in it since getting it in 2017 with 70k on it. I do a lot of motorway miles and fitted a cruise control kit.
Its done well in that time, except for the clutch - it is now on its 3rd (130k then 175k). Its needed a turbo (130k) and an alternator (135k) and a coolant tank (155k) but everything else has been standard service and wear items (shocks/suspension arms/engine mounts/brakes/exhaust/battery/tyres/plugs/etc).
It snapped both its handbrake cables too when i stopped on a hill last week!
I do an oil+filter change every 10k (or close to) where it gets the cheapest 5w40 fully synth i can find (frequently the Asda one!)
I can’t believe it runs on Asda oil
 
Mine has just made it past 190k.
Expensive few months as she has needed front brakes and pads and tyres and some mirrors after both succumbed to multiple knocks and the plastic hinge snapped.
Oil and filter change this week and i’m now on “MANNOL” oil from ebay (£53 for 20L)
 

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Mine has just made it past 190k.
Expensive few months as she has needed front brakes and pads and tyres and some mirrors after both succumbed to multiple knocks and the plastic hinge snapped.
Oil and filter change this week and i’m now on “MANNOL” oil from ebay (£53 for 20L)
In case anybody else is also a nerd:

In my Twinair in my ownership I have so far done 116,326 miles and have used 12,389 Litres of fuel at a total cost of £16,592.19, getting an overall average of 42.8 mpg and an average cost of 14.2p/mile

I have spent £2,639.60 on maintenance - including oil and filters and tyres but excluding MOT's - this is 2.3p/mile on average.
This is all DIY work so no labour costs have been included.
I am about to do my 11th oil & filter change in that time, meaning 10575 miles on average between changes.

The total per mile costs works out as 16.5p/mile for fuel & maintenance
 
I've done 110k or so miles in it since getting it in 2017 with 70k on it. I do a lot of motorway miles and fitted a cruise control kit.
Its done well in that time, except for the clutch - it is now on its 3rd (130k then 175k). Its needed a turbo (130k) and an alternator (135k) and a coolant tank (155k) but everything else has been standard service and wear items (shocks/suspension arms/engine mounts/brakes/exhaust/battery/tyres/plugs/etc).
It snapped both its handbrake cables too when i stopped on a hill last week!
I do an oil+filter change every 10k (or close to) where it gets the cheapest 5w40 fully synth i can find (frequently the Asda one!)
Ok you aready answered my questions. Its good to know they can do it. Maybe more use is good for them
 
I've done 110k or so miles in it since getting it in 2017 with 70k on it. I do a lot of motorway miles and fitted a cruise control kit.
Its done well in that time, except for the clutch - it is now on its 3rd (130k then 175k). Its needed a turbo (130k) and an alternator (135k) and a coolant tank (155k) but everything else has been standard service and wear items (shocks/suspension arms/engine mounts/brakes/exhaust/battery/tyres/plugs/etc).
It snapped both its handbrake cables too when i stopped on a hill last week!
I do an oil+filter change every 10k (or close to) where it gets the cheapest 5w40 fully synth i can find (frequently the Asda one!)
So much for my oil fears!
 
So much for my oil fears!

from what I’ve been reading it seems that selecting the optimal oil grade is less about the technical specification listed in the h/book (with no elaboration) and more about judgments based on ambient outside temperatures combined with the performance being demanded from the engine in those temperatures (fast motorway v tootling along, driver only v full load+max weight trailer, flat topography v Alpine passes etc) which, in reality, is pretty much what every car is exposed to during its life?
 
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