Castrol and TomTom research revealed car drivers in Istanbul, Mexico City and Moscow top the STOP-START Index

Amsterdam, Netherlands, 07-10-2013 — /EuropaWire/ — The latest research from Castrol and TomTom has revealed drivers in Istanbul could experience 31,200 stop-starts a year, compared to the lowest ranked city, Rotterdam, where drivers might only experience 6,211 stop-starts, more than 24,000 fewer.

The study was carried out for Castrol by TomTom, using information from its satellite navigation systems on vehicles in 50 cities worldwide. The goal was to highlight the pressures that changing driving conditions place on vehicles across the globe.

Other cities in the study include Beijing with 28,200, London with 21,000 stop-starts, New York with 15,480, and Sydney with 13,200.  Stop-start driving can increase microscopic wear in car engines and Castrol’s studies have shown that even a normal driver can experience as many as 18,000 stop-starts every year.

According to Castrol engineers, frequent stop-starts can cause increased wear to a car engine.  The number of stop-starts reflect the driving conditions and situations drivers are facing in each market.  These results show the size of the stop-start problem and indicate that precautions are necessary, one of the reasons why Castrol commissioned this study.

Castrol have identified three levels of stop-start driving, Green, Amber and Red (detailed below).  Amber and Red warn drivers of heavy stop-start conditions which are likely to bring about serious stop-start wear to the engines. They will trigger drivers to take appropriate actions to fight against stop-start wear and protect their engines every time they start.

  • GREEN: Moderate level of stop-start driving, as drivers are experiencing less than 8,000 stop-starts per year. Recommend drivers to take necessary precautions against stop-start engine wear.
  • AMBER: Heavy level of stop-start driving, as drivers are experiencing 8,000 stop-starts or more per year. Drivers should take actions to protect against stop-start engine wear.
  • RED: Severe level of stop-start driving, as drivers are experiencing 18,000 stop-starts or more per year.  Drivers should take actions to protect against stop-start engine wear.

The project highlights stop-start driving, including traffic, urbanisation, and short journeys experienced in each area.  Data from vehicles and trips within a region and time span was aggregated by TomTom, total driven kilometres and total number of stops calculated, and an average number of stops per driven km per region derived.

Gareth Bracchi, Senior Development Technologist at Castrol, said:

“This project confirmed that drivers were making lots of stop-starts in their vehicles. In fact the numbers of stop-starts per year far exceeded our initial expectations – almost double in some cases! This highlighted that there are many more drivers out there that need the stop-start wear protection of Castrol MAGNATEC STOP-START.”

Ralf-Peter Schäfer, Head of Traffic at TomTom, said:

“The results from the Index are fascinating and working with Castrol to produce the Index has been very revealing.  Istanbul’s highest stop rate among the big cities corresponds to its very high congestion level, followed by Moscow and Mexico City, certainly founded by heavy daily congestion as well. Traveling in Rotterdam however goes along with the lowest stop rate as the city has moderate congestion.”

Please check out the Castrol MAGNATEC STOP-START Index report here to see where your local city stands globally.  For more information on the methodology of the study and implications of stop-starts on your engine, please visit 



City Total number
of stops
Average number of
stops per vehicle
per year
Istanbul 21,596,566 31,200
Mexico City 17,999,273 30,480
Moscow 1,385,513 29,520
Beijing 64,941 28,200
Saint Petersburg 429,908 28,080
Rome 30,513,339 28,080
Jakarta 522,073 28,080
Bangkok 309,197 26,040
Shanghai 252,607 24,960
Surabaya 31,196 24,360
Guadalajara 2,712,922 24,360
Milan 25,534,082 23,040
Buenos Aires 9,983,192 22,920
Manchester 10,521,105 22,680
Madrid 42,485,068 22,320
Amsterdam 14,633,252 22,320
Sao Paulo 102,189,603 22,200
London 225,644,745 21,000
Barcelona 41,199,071 20,400
Kaohsiunga 2,150,839 20,280
Taipei 8,113,321 20,040
Johor Bahru 467,398 19,800
Hong Kong 862,288 19,680
Cordoba 473,588 18,120
Ankara 5,963,224 17,880
Paris 296,090,725 17,520
Phuket 18,391 17,400
Warsaw 7,075,404 16,200
Rio de Janeiro 19,517,721 16,200
Berlin 48,478,293 16,200
New York 62,028,327 15,480
Krakow 2,298,441 13,800
Stockholm 5,110,227 13,680
Singapore 9,610,879 13,680
Sydney 45,550,971 13,200
Vancouver 7,216,008 12,600
Lyon 26,042,523 10,920
Hamburg 28,564,290 10,800
Dubai 282,844 10,200
Kuala Lumpur 1,798,523 9,960
Johannesburg 40,088,722 9,840
Wellington 956,014 9,480
Auckland 6,466,118 9,360
Los Angeles 17,898,857 9,000
Melbourne 35,979,611 8,760
Cape Town 9,699,280 8,760
Toronto 20,024,752 8,520
Goteborg 1,849,933 7,800
Abu Dhabi 169,795 6,840
Rotterdam 16,180,627 6,120

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