Volvo RWD 1800 Forum

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What grade gss for 1800 engines? 1800

With all the different 1800 engines (b18s, b20e/f), does enyone know the the gasoline grade requirement for each? Should you use 87, 89 or 93, or does anyone know where to find the info.

Seems simple, but I can;t find it:-)

Thx.............








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    What grade gss for 1800 engines? 1800

    To me, when you consider all the variables such as;

    Age
    Carbon deposits
    Different production dates
    Repair history - (Which engine do you really have?)
    Tune up variations
    Carburator adjustment
    What fuel did you really get?
    How many miles do you travel?
    Are the quality miles?

    and about ten other things...

    I'll feed my older Volvos (actually all of them) high test.
    --
    '96 855R,'64 PV544 driver, '67 P1800 basket case, '95 855, '95 854, the first three are mine, heh, heh, 415,000 miles put on 9 bricks








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    What grade gss for 1800 engines? 1800

    1800S through '68, B18B engine, 10.0:1 compression = premium gas

    '69 1800S, B20B engine, 9.5:1 compression = mid-grade gas

    '70-'71 1800E, B20E engine, 10.5:1 compression = premium gas

    '72-'73 1800E/ES, B20F engine, 8.7:1 compression = regular gas








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    What grade gss for 1800 engines? 1800

    Green Book 1971
    0:9
    B 20 B 100 octane {ROT}
    B 20 E 97 octane {ROT}
    Use 92 octane,
    Union 76,or Chevron
    --
    69-145-S ; 71-145-S ; 72-145-E ; 72-1800-ES ; 87-245-DL







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