Mk 2 Carrier water can

[Grant Bowker]

Originally Posted by Lynn Eades

Heres a thing. The (minimum) octane rating on a 16 April, 1942 Jeep stated "68" Maybe the "80" refers to specific gravity of POL products for the weight calculation? Oil and petrol being approx. .8 sg?. Just a thought....

I think Octane remains more likely. If 70 octane rating was "regular", with lower numbers being still available it would be reasonable if the Jeep required a minimum of 68 to specify the minimum to avoid someone using lower values. Surely the point of marking the tin is to ensure the correct product ends up in the correct vehicle but I've never heard of specific gravity of fuel or oil varying much (except with temperature - jet aircraft plan their required fuel load for a flight by weight since the energy content varies more accurately by weight than volume, then convert to volume, depending on temperature, for ease of measuring when pumping into the aircraft).

[rob love]

Google is one's friend, especially wrt this MT80 conundrum.


"RESTRICTED
I. – REASONS FOR INTRODUCTION OF M.T.80 PETROL

1. Certain American armoured fighting vehicles, in use both by British and American armies, were fitted with de-rated aircraft engines which required a fuel with a minimum octane rating of 80.

2. After due consideration, it was decided that it was impracticable to stock two different octane rating fuels within the army, and it was, therefore, decided that the basic army fuel would be of 80 octane rating and that this fuel would be the standard supply for all types of vehicles within the British and American armies."


Good discussion on it at this link: http://ww2talk.com/index.php?threads...of-mt80.58510/

[Robert Bergeron]

Guys, i don’t mind lovely women . It’s a nice change from rusty old cans. 80 is an aviation fuel rating ( 80/87) . It is also an hydraulic / transmission oil rating . I accept Rob’s explanation . MT 80 stands for 80 Octane grade motor transport gasoline . I also agree a flimsy is unlikely to have been used for oil . Keep them coming !

[brengunman]

Would DR's wear street shoes and pants?

[Ron Pier]

Originally Posted by brengunman

Would DR's wear street shoes and pants?

Highly unlikely. They sometimes wore shorts in hot climates but usually with boots and sometimes Kinky Boots! Ron

[Robert Bergeron]

Ron , you are fixated on female motorcyclists ! Show us their “cans” .... because that is the subject of this thread . Let’s stay on track “can” we ?

[Ron Pier]

I'm not fixated. I merely posted a picture with girls because of their cans. Others then asked questions. I think it's better to talk about something, than nothing, which seems to be the case a lot of the time! Sorry to piss on your firework. Ron

[Robert Bergeron]

Ron , i was joking . in North American parlance “cans” = breasts . Sorry if i have offended you . It was all meant in jest.

[Chris Suslowicz]

Originally Posted by Grant Bowker

I think Octane remains more likely. If 70 octane rating was "regular", with lower numbers being still available it would be reasonable if the Jeep required a minimum of 68 to specify the minimum to avoid someone using lower values. Surely the point of marking the tin is to ensure the correct product ends up in the correct vehicle but I've never heard of specific gravity of fuel or oil varying much (except with temperature - jet aircraft plan their required fuel load for a flight by weight since the energy content varies more accurately by weight than volume, then convert to volume, depending on temperature, for ease of measuring when pumping into the aircraft).

Hansard, 13th November 1950:

Mr Russell asked the Minister for Fuel and Power if he will consider raising the standard of pool petrol to approximately 80 octane.

(Answer: basically not without substantially increasing its lead content, which might cause maintenance issues with British engines.)

Further down:

Mr Noel-Baker "Before the war we had three grades of petrol - commercial 68 octane, No.1 grade 75 octane and top grade 80 octane. I am advised that very few vehicles used 80 octane. Nearly all of them used the other grades. To raise our petrol to even 75 octane would mean a loss of output."

Much later...

The 1967 British Standard "Star" system had:

1 Star - 89 octane "Standard" or "Regular" (89 - 91)
2 Star - 92 octane
3 Star - 95 octane "Mixture" (by mixing Premium and Regular)
4 Star - 98 octane "Premium" (96 - 98)
5 Star - 101 octane "Super" (99 - 101)

Chris.