Undefined property: stdClass::$Blanch

I Am getting this error

(Undefined property: stdClass::$Blanch)

While trying to call the relation data in blade {{$req->Blanch->name}}

I have created the function in model

public function Blanch()
{
    return $this->belongsTo(Blanch::class, 'branch_id', 'id');
}

I dont know what is missing anyone with idea can help

$req= DB::table('fuel_requests')
        ->LeftJoin('pumps','fuel_requests.pump_id','=','pumps.id')
        ->LeftJoin('cars','fuel_requests.car_id','=','cars.id')
        ->select('fuel_requests.*')
        ->get();

while in my model i have

protected $table = "fuel_requests"; 
protected $fillable = ['type', 'branch_id', 'car_id', 'pump_id','quantity', 'user_id', 'name', 'deadline', 'verified_by', 'approved_by', 'supplied_by', 'received_by', 'status'];