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[navistar45]

well said 560 and evil. and though a bit off topic,if you want to compare the quality that goes into engines of the same size,but different brands,the 5.9 cummins and the 5.9 international are excellent examples.the 5.9 international engine[in terms of build quality] is superior in everyway.i made this assesment many months back.yes the 6bt cummins is a good engine,and very popular,a lot of the popularity is because of the fact,size,weight ratio.cummins builds engines not equipment,therefore there is no conflict between equipment builders,[ever seen a jd diesel in cat backhoe or dozer ?]what about a case diesel in a jd dozer or backhoe,or vise versa.the fact is as a company that builds only engines,you must seek out buyers for the product you build.i will say it again,yes the 6bt is a very good engine,but it in some cases has had problems along the way also,and yes there are better engine choices on the market,or have been over the years.personaly i like v8 diesels in pickups,they act for the most part like a gas engine in daily driveing conditions,but also perform like a diesel when it comes time to tow or work in general.i have owned v diesels in anything from a class 8 truck to a pickup,i do not question there reliability,if i know there reputation,the same applies for a inline 6....