Disqualification in Formula 3

During the season of 1987 there were a lot disqualifications due to problems of fuel. Can someone explain what has happend with the official results of the season, or add to my list?
1987 Marlboro Italian Formula 3 Championship

Round 1
22 Mar 1987 - Magione

1 Andrea Chiesa Dallara 387 Alfa Romeo

Pole Position:
Fastest Lap:


Round 2
5 Apr 1987 - Vallelunga

1 Andrea Chiesa Dallara 387 Alfa Romeo

Pole Position:
Fastest Lap:


Round 3
26 Apr 1987 – Misano, 35 laps

1 Enrico Bertaggia Dallara 387 Alfa Romeo 44m36.34s, 102.63 mph
2 Mauro Martini Dallara 387 Alfa Romeo 44m41.52s
3 Rinaldo Capello Reynard 873 Alfa Romeo 44m42.25s
4 Andrea Chiesa Dallara 387 Alfa Romeo 44m47.83s
5 Emanuele Naspetti Dallara 387 Alfa Romeo 44m48.05s
6 Eugenio Visco Reynard 873 Alfa Romeo 44m59.25s
7 Gianni Morbidelli Dallara 387 Alfa Romeo 44m59.85s
8 Cesare Carabelli Reynard 873 Alfa Romeo 45m00.79s
9 Franco Scapini Ralt RT31 Volkswagen 45m02.04s
10Gianfranco Tacchino Dallara 387 Alfa Romeo 45m04.33s

Pole Position Enrico Bertaggia
Fastest Lap: Enrico Bertaggia 1m15.84s, 103.48 mph


Round 4
10 May 1987 - Mugello

1 Andrea Chiesa Dallara 387 Alfa Romeo

Pole Position:
Fastest Lap:


Round 5
7 Jun 1987 - Varano

DQ Massimo Monti Ralt RT31 Volkswagen
1 Enrico Bertaggia Dallara 387 Alfa Romeo

Pole Position:
Fastest Lap:


Round 6
28 Jun 1987 – Monza, 21 laps

1 Enrico Bertaggia Dallara 387 Alfa Romeo 39m16.78s, 116.28 mph
2 Cesare Carabolli Reynard 873 Alfa Romeo 39m18.64s
3 Andrea Chiesa Dallara 387 Alfa Romeo 39m18.65s
4 Mauro Martini Dallara 387 Alfa Romeo 39m19.98s
5 Fabrizio Giovanardi Reynard 873 Alfa Romeo 39m24.62s
6 Rinaldo Capello Dallara 387 Alfa Romeo 39m27.11s
7 Gianfranco Tacchino Dallara 387 Alfa Romeo 39m27.52s
8 Cathy Muller Ralt RT31 Volkswagen 39m27.52s
9 Emanuele Naspetti Dallara 387 Alfa Romeo 39m36.88s
10Giovanni Bonanno Reynard 873 Alfa Romeo 40m01.05s

Pole Position:Enrico Bertaggia
Fastest Lap: Mauro Martini, 1m50.45s, 118.15 mph


Round 7
5 Jul 1987 - Pergusa

DQ Massimo Monti Ralt RT31 Volkswagen
1 Eugenio Visco Reynard 873 Alfa Romeo

Pole Position:
Fastest Lap:


Round 8
8 Aug 1987 - Misano

1 Mauro Martini Dallara 387 Alfa Romeo

Pole Position:
Fastest Lap:


Round 9
30 Aug 1987 - Monza

1 Enrico Bertaggia Dallara 387 Alfa Romeo 38m53.6s
2 Antonio Tamburini Reynard 873 Alfa Romeo 38m55.7s
3 Andrea Chiesa Dallara 387 Alfa Romeo 39m02.5s

Pole Position:
Fastest Lap:


Round 10
13 Sep 1987 – Imola, 24 laps

1 Alberto Apicella Dallara 387 Alfa Romeo 43m38.77s, 103.92 mph
2 Enrico Bertaggia Dallara 387 Alfa Romeo 43m46.74s
3 Fabrizio Giovanardi Reynard 873 Alfa Romeo 43m49.25s
4 Gianfranco Tacchino Dallara 387 Alfa Romeo 43m55.19s
5 Eugenio Visco Reynard 873 Alfa Romeo 43m56.42s
6 Andrea Chiesa Dallara 387 Alfa Romeo 43m57.97s
7 Antonio Tamburini Reynard 873 Alfa Romeo 44m01.25s
8 Emanuele Naspetti Dallara 387 Alfa Romeo 44m05.71s
9 Gianni Morbidelli Dallara 387 Alfa Romeo 44m06.92s
10Michele Minutolo Ralt RT31 Volkswagen 44m07.24s

Pole Position: Alberto Apicella
Fastest Lap: Rinaldo Capello, 1m48.32s, 104.68 mph


Round 12
27 Sep 1987 Vallelunga, 27 laps

DQ Rinaldo Capello Reynard 873 Alfa Romeo 34m02.13s, 94.58 mph
DQ Cesare Carabelli Reynard 873 Alfa Romeo 34m05.34s
DQ Gianfranco Tacchino Dallara 387 Alfa Romeo 34m06.14s
1 Eugenio Visco Reynard 873 Alfa Romeo 34m07.30s
2 Mauro Martini Dallara 387 Alfa Romeo 34m08.08s
3 Antonio Tamburini Reynard 873 Alfa Romeo 34m08.29s
4 Giovanni Bonnano Reynard 873 Alfa Romeo 34m24.51s
5 Paulo della Piane Ralt RT31 Volkswagen 34m26.59s
6 Rosario Parasiliti Reynard 873 Alfa Romeo 34m54.61s
7 Vito Boffa Ralt RT31 Alfa Romeo 35m06.83s

Pole Position:
Fastest Lap: Eugenio Visco, 1m13.68s, 97.17 mph


Round 13
25 Oct 1987 – Mugello

1 Roberto Colciago Dallara 387 Alfa Romeo

Pole Position:
Fastest Lap:


Final Points

1 Enrico Bertaggia Forti Corse Dallara 387 Alfa Romeo 56
2 Andrea Chiesa Euroracing Dallara 387 Alfa Romeo 51
3 Mauro Martini Coperchini Racing Dallara 387 Alfa Romeo 48
4 Eugenio Visco Team Serasina Reynard 873 Alfa Romeo 39
5 Roberto Colciago Coperchini Racing Dallara 387 Alfa Romeo 10
6 Gianni Morbidelli Dallara 387 Alfa Romeo 8
7 Felice Tedeschi Piemmi Motors Reynard 873 Alfa Romeo 6
8 Giovanni Bonnano Reynard 873 Alfa Romeo 4
9 Paulo delle Piane Ralt RT31 Volkswagen 3
10 Emanuele Naspetti Dallara 387 Alfa Romeo 2
11 Michele Minutolo Ralt RT31 Volkswagen 2
12 ‘Gimax’Junior Dallara 387 Alfa Romeo 2
13 Rosario Parasiliti Reynard 873 Alfa Romeo 2

Monti wasn't disqualified, he just didn't score points because he ran with an English licence that year - remember? He started out as Damon Hill's teammate in British F3, then quit to be substituted by Donnelly and returned to Italy to win on his first appearance back home.

Later that year, at the penultimate round, two or three teams were found cheating with the fuel. Their drivers' points were rescinded, but they were not disqualified, i.e. other drivers did not profit from their points loss other than gaining ranks in the final standings - not dissimilar with the Tyrrell case three years before.

Give me a little time and I will come back with more detailed info.

Was there not an issue for many F3 engines in that period due to the use of unleaded fuels and detonation of the engine. I think many teams experimented with additives etc to try and combat this problem. I dont think it was teams blatently breaking the rules for a performance advantage all they were trying to do was to save the tempremental engines of the day. I know that Engine Developments machined the cylinder heads on the VW engines and placed in an insert of a higher grade of aluminium in to the combustion chamber to stop the problem.