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The Cummins L Series engine is a straight-six diesel engine designed and produced by Cummins. It displaces , and began production in 1982 as the L10. The engine was based on its predecessor, the Cummins C8.3 engine and which like the current ISL, had seen use in the applications listed above. It displaced , and was available in either a vertical form, for upright use in trucks and buses, or horizontal form, for underfloor use in buses and trains. The L10 was Cummins first competitive offering in the British bus market, as their earlier production had been too large and heavy. However, it had a troublesome introduction to the British market, with high oil consumption and sealing problems.〔 By 1994, it had been developed into the M11, and in 1998, Cummins ceased production of the old L series engine. The L10 became the ISL when the Interact System was added. The Cummins ISL also has a sister engine which is based on the existing ISL 8.9 litre cylinder block which runs on compressed natural gas (CNG).〔http://cumminsengines.com/islg-school-bus-2013?#overview〕 The engine was introduced in 1992 as the L10G before being replaced by the L Gas Plus in 2001 until it became the ISL G in collaboration with Westport Innovations in 2008. ==Popular power ratings== ;Urban bus : @ 1300 rpm, electronically governed at 2,200 rpm : @ 1300 rpm, (209 kW) electronically governed at 2,200 rpm : @ 1300 rpm, (246 kW) electronically governed at 2,200 rpm ;Firetruck/Motorhome/Truck : @ 1,300 rpm, (231 kW) electronically governed at 2,100 rpm : @ 1,300 rpm, (246 kW) electronically governed at 2,100 rpm : @ 1,300 rpm, (298 kW) electronically governed at 2,200 rpm 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cummins L Series engine」の詳細全文を読む スポンサード リンク
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