I’m looking to purchase my 1st truck but am really on the fence on which truck to get with which engine. Looking for opinions and advice on which truck is going to have the least breakdowns. Looking at 2015,16,17 trucks with 300-400k miles. What truck would be my best bet to start with??
Detroit dd15, isx 15, Paccar mx15
Discussion in 'Motor Carrier Questions - The Inside Scoop' started by Jmsjms000, Nov 20, 2019.
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Seems like DD15 engine is good but their emissions box is not so good design. The DOC filters are welded into the box and when the go bad it's a $12,000 repair. DD15 had trouble with oil pickup tube cracking in oil pan. I think they fixed that
Cummins ISX has soot problems or not enough oil flow to cams on top of engine. The cams for valves would go bad. Cummins never admit it what their fault. They had some ceramic fuel pumps. If they go bad they take out the engine. They fixed with different fuel pump now. Cummins was smart enough to make their emissions system in parts. So you can replace a bad partJmsjms000 Thanks this. -
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I run an ISX15, put 12,000 miles on it and thus far zero issues. This is with a cm2250 motor (2010 EPA standard) with now 533,000 miles on the clock. -
Thank you for the info, appreciate it!!
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I have the paccar mx13 motor..201,000mi on it and never been in the shop..has been very reliable and getting 8.3 overall mpg with it too..
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150k on a 2019 Dd15. No issues as of yet. 8mpg average.
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There is no MX 15, only 13. -
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