Review on 🚀 Boost Your Diesel Engine Performance with Lang Tools TU-15-53 Diesel Compression Test Set by Trevor Bannister

All fittings are leaking, no pressure! All Schrader valves are not tight, I tried replacing them with new ones, it was a bit better but still leaking, the pressure gauge doesn't hold the pressure after I started the engine, I tried everything to fix it failed to repair, and am very poor quality of the instrument. I contacted the seller to try to return it, they didn't return it