1986 340 CVT Fuel Type??

Lami17 · Sep 5th, 2011, 21:50

Hi, I have just bought a 86 340 CVT and one thing I totally forgot to find out about (too busy researching elastic band gearboxes) was what type of petrol to use. Any advice would be much appreciated.

The engine is a B14 4E and the Renix Ignition Unit is a type 402. I have a Haynes manual that states the ignition timing should set to 6 deg BTDC but doesn't refer to fuel type.

Thanx in advance, Ian...

345DL · Sep 8th, 2011, 20:49

Hi

I use minimum 97 octane unleaded in my 1985 CVT. The manual says 97 octane minimum, I think.

From memory, that means BP or Esso premium unleaded.

Just as an aside, I use exactly the same petrol in my 1980 345 as well, and it runs brilliantly.

Hope this helps.

Sion

Clan · Sep 8th, 2011, 21:11

Quote:

Originally Posted by Lami17

Hi, I have just bought a 86 340 CVT and one thing I totally forgot to find out about (too busy researching elastic band gearboxes) was what type of petrol to use. Any advice would be much appreciated.

The engine is a B14 4E and the Renix Ignition Unit is a type 402. I have a Haynes manual that states the ignition timing should set to 6 deg BTDC but doesn't refer to fuel type.

Thanx in advance, Ian...

The ignition timing is fixed on yours ..the 1986 model year used 96 octane , the modification for unleaded fuel was to Earth the ‘B’ Terminal on Renix unit. Use wiring harness (part no 3209295) and connect the white cable to a good earth.
But in practice these days just use normal unleaded , my 1980 B14 has been fine on it and has done 250000 miles ...

Joe Harding · Sep 9th, 2011, 08:35

Quote:

Originally Posted by Clan

But in practice these days just use normal unleaded , my 1980 B14 has been fine on it and has done 250000 miles ...

I had to count the noughts there! 250 grand! That's a tidy mileage for a small car. Neither of our first two 340's got much past 150 thou. Well done you!

Clan · Sep 9th, 2011, 18:20

I have been battling with the body the last few years but winning ... engine is still original but with a 1.7 5 speed gearbox ..

Sep 5th, 2011, 21:50	#1
Lami17 New Member Last Online: May 10th, 2019 20:58 Join Date: Aug 2011 Location: Guisborough	1986 340 CVT Fuel Type?? Hi, I have just bought a 86 340 CVT and one thing I totally forgot to find out about (too busy researching elastic band gearboxes) was what type of petrol to use. Any advice would be much appreciated. The engine is a B14 4E and the Renix Ignition Unit is a type 402. I have a Haynes manual that states the ignition timing should set to 6 deg BTDC but doesn't refer to fuel type. Thanx in advance, Ian...

Sep 8th, 2011, 20:49	#2
345DL VOC Member Last Online: Jun 10th, 2023 18:18 Join Date: Jan 2010 Location: Cambridge View Photos By: 345DL	Hi I use minimum 97 octane unleaded in my 1985 CVT. The manual says 97 octane minimum, I think. From memory, that means BP or Esso premium unleaded. Just as an aside, I use exactly the same petrol in my 1980 345 as well, and it runs brilliantly. Hope this helps. Sion __________________ Current Volvos: 1977 343 DL Vario; 1979 343 DL; 1980 345 DL; 1982 Volvo 245 GLT; 1985 340 DL Vario; 2014 V40 R-Design D4

Sep 9th, 2011, 18:20	#5
Clan Experienced Member Last Online: Today 12:31 Join Date: Jun 2007 Location: L/H side	I have been battling with the body the last few years but winning ... engine is still original but with a 1.7 5 speed gearbox .. __________________ My comments are only based on my opinions and vast experience .

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