UK-supplied 328 temp gauges: Fahrenheit? | FerrariChat

UK-supplied 328 temp gauges: Fahrenheit?

Discussion in '308/328' started by Riot, Jul 7, 2025 at 7:43 AM.

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  1. Riot

    Riot Rookie

    Apr 9, 2025
    3
    Looking online at multiple examples of UK-supplied 328s, I notice most of them seem to have temperature gauges with faces in Fahrenheit, which seems odd to me.

    I would have assumed that only US-supplied cars would have F gauges, the rest being C, but I'm struggling to find any pictures online of a UK-supplied example that has C gauges. Does anyone have any information on why this might be?
     
  2. JC1720

    JC1720 Karting

    Jan 21, 2016
    139
    UK
    On both my 308 & 550 it is MPH & Fahrenheit

    Reason being I understand is MPH = primarily US market, and they combine that with degrees F, kmh & degrees C in e.g Europe

    makes sense to me but others may have more specific knowledge
     
  3. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,055
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    Questions like this are easily answered and with certainty by looking at the parts book.
    US and all RHD cars got F. LHD cars besides US versions came with C. Makes perfect sense to me.
     
  4. Riot

    Riot Rookie

    Apr 9, 2025
    3
    That's what perplexes me, there is no country in the world as far as I'm aware that has RHD and at the same time uses Fahrenheit.

    If it's just that it's paired with MPH for the US market, that makes some sense. But still a bit surprising. Does that mean every RHD car in all global markets also got MPH speedometers, even in RHD countries that primarily use kilometers like Japan?
     
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,055
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    Not now there isnt. Cars were not built last week.

    I could have sworn your question was about temp gauges. Now its speedometers?
    Why dont you look in the parts books like I suggested?
     
  6. Riot

    Riot Rookie

    Apr 9, 2025
    3
    While Britain and South Africa both used Fahrenheit at one stage, Celcius was the norm from the 1960s to 1970s in both countries, and I'm not aware of any other countries that have RHD and used Fahrenheit when the 328 was introduced in 1985. Are you?

    I'm primarily interested in the temperature gauges, and the first answer on this thread suggested that it may simply be that Fahrenheit gauges were always paired with MPH speedos - hence my followup question regarding speedos.

    The parts, as far as I can tell, only specify the territories for each part, without making it clear which reads in F and which in C. For example, the oil temperature gauge is one of the following parts:
    • 125943: Until exhaustion For LHD - ZA - SA - J - AUS - No for US - CDN
    • 130831: After exhaustion 125943 For AUS - LHD - ZA - C8 - SA - J - CDN - Not for US
    • 125949: Until exhaustion For RHD - US - Not for ZA - CDN - SA-J-AUS
    • 130832: After exhaustion 125949 For RHD-US - Not for ZA - CDN - SA - J - AUS

    And while these might answer a question of "what", my original question was: "does anybody have any information on why this might be?" - would be very curious if anyone's aware of the rationale. Always being paired with MPH speedos is one plausible possibility, but still strikes me as a bit odd.
     
  7. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,734
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    The UK has a funny mix of Imperial and Metric units in their everyday lives -- you buy a pint of beer (not a 1/2 liter), distances are usually discussed in miles (not km), and their cars mileage performance in mpg but gasoline is sold by the liter. ;)
     
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  8. JC1720

    JC1720 Karting

    Jan 21, 2016
    139
    UK
    #8 JC1720, Jul 7, 2025 at 9:57 AM
    Last edited: Jul 7, 2025 at 10:02 AM
    For those that are interested it’s a long and tortuous story, with metric system being advocated to replace imperial from early 1800s and used for eg weather forecasting from early 1900s as scientists started to align globally.

    Over a period from 1965 UK officially went metric with exception for miles, yards, feet etc for speed and distance (presume too hard to change all signs and speedos), Troy ounces for gold and other precious metals and pints for beer (and milk!) as that would be a change too far / would cause a revolt. Spirits and wine on the other hand must be sold in ml…

    my kids who were 100% educated in metric system sometimes struggle to understand what a mile is, so I guess at some point kilometres may be adopted but not in my or their lifetime I expect
     
  9. Patrick Dixon

    Patrick Dixon Formula 3

    Mar 27, 2012
    1,130
    UK
    Except we call it 'petrol' and buy it in 'litres'.
     
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  10. Paul Kane

    Paul Kane Karting

    May 27, 2020
    242
    Rickmansworth UK
    Full Name:
    Paul Kane
    Us Brits are used to metric imperial mix eg a sheet of plywood is 8' x 4' x 12.5mm ;)
     
  11. 4rePhill

    4rePhill F1 Veteran

    Oct 18, 2009
    8,252
    Worcester, England
    Full Name:
    Phill J
    So is the rest of the World when it comes to tyres ;) (unless you're using metric TRX tyres)
     
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  12. bertrand328

    bertrand328 Formula 3

    Jun 1, 2015
    1,617
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    Bertrand
    #12 bertrand328, Jul 8, 2025 at 1:35 PM
    Last edited: Jul 8, 2025 at 1:50 PM

    What do you mean by UK supplied 328s ?

    I mean Euro type RHD 328 ( same as UK 328 ) were sold new to HK, Singapore, New Zealand, South Africa, Malaysia, Thailand, others ?.. Some of these country use(d) kilometer and celcius° so ...
     
  13. mk e

    mk e F1 World Champ

    Oct 31, 2003
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    Help me get this thing finished! https://gofund.me/39def36c
    #13 mk e, Jul 8, 2025 at 1:45 PM
    Last edited: Jul 8, 2025 at 1:57 PM
    Mile from mili, its 1000 right/ left strides of a typical (invading) Roman solder, duuuh!?! :p
     
  14. GordonC

    GordonC F1 Rookie
    Owner Rossa Subscribed

    Aug 28, 2005
    4,163
    Calgary, AB, Canada
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    Gordon
    I would suppose the question could also be formed as "308s and 328s delivered by Maranello Concessionaires", as they had the UK distributorship through the 70s-90s, and more.

    I have a LHD "Euro" 308 GTS qv that is UK spec - the car was ordered by the Maranello Concessionaires agent on Jersey, Channel Islands, and while it is UK spec (rear fog lights, gauges in imperial psi, *F), the documentation/correspondence indicates that it was ordered to be LHD as the Jersey buyer would more often be driving in mainland Europe than on Jersey or UK islands.

    (I tracked down the owner of the Maranello Concessionaires archive last winter with the help of members here, and he provided copies of all the order and delivery correspondence for my car)

    It is fair to say with reasonable certainty that 308s and 328s delivered by Maranello Concessionaires in UK and region do all have imperial units on the gauges. (My car's speedometer was switched to km/h when it was imported to Canada in later 1980s)

    Regards,
    Gordon
     
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  15. Patrick Dixon

    Patrick Dixon Formula 3

    Mar 27, 2012
    1,130
    UK
    My Maranello Concessionaires/UK supplied, 1976 built, 308gt4 has a speedo in mph and temp gauges in Celsius. kph and Fahrenheit are also marked in smaller, yellow text. Not sure what the fuel and oil pressure gauge units are, but since they barely function it's pretty academic. If they are not absolutely stuck on zero, I figure I'm good to go.

    The speedo starts at 10 mph because these cars look so fast even when standing still. That may not be the same for GTB/GTSs.
     
  16. bertrand328

    bertrand328 Formula 3

    Jun 1, 2015
    1,617
    France
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    Bertrand

    Interesting but I don't know much about 308.

    I have some 328GTS in my data delivered new by Melbourne Garage Ltd in Jersey and all were UK RHD type, nothing about LHD car.
     

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