Texas truck sales Sold me a truck that had a liner leaking Dallas Texas

purchesed 2011 international prostar with isx Cummings engine on dec 21, 2017. Put it on the road with landstar on Jan. 2 2018.  Put it in freightliner on Irving blvd on Jan 24, 2018 using water. (2 gal every 1200 miles) had put approx 10,000 miles on truck since purchesed. Freightliner informed me that engine problem had been oncoming and no way that it happened since I bought truck. This is per jimmy one of the shop formans. The warranty I was forced to purches would not cover this. I talked to Alex my salesman at Texas truck sales, Dallas, tx. He said he would talk to the owner emmit to see what help they could give. I was informed no help would be given even though it was happening before I bought truck. If anyone wants to view the reports from freightliner please get in touch with me so I can prove my statements to you. BUYER BEWARE. These people are rip offs.