Laravel 5 eager loading belongs to relation

I have a problem with Laravel 5 and Eloquent. I have 3 models called Ad, AdEngine and Engine:

class Ad 
{
    ...
    public function engineAd()
    {
        return $this->belongsTo('App\Models\EngineAd', 'engine_ad_id', 'id');
    }
    ...
}

class EngineAd 
{
    ...
    public function engine()
    {
        return $this->belongsTo('App\Models\Engine', 'engine_id', 'id');
    }
    ...
}

class Engine {...}

      

        
        
        
      

    

Inside my ad class, I have a method called title that uses a relationship that belongs to To, for example:

public function title() 
{
    return $this->engineAd->engine->title;
}

      

        
        
        
      

    

For the first relation Ad -> AdEngine, I used download to get all the AdEngine:

$ads = Ad::with('engineAd');

      

        
        
        
      

    

But for the AdEngine -> Engine relationship, Laravel generates an additional request for each iteration, can I use a downloadable load or something similar here?

select * from `engine` where `engine`.`id` = '1' limit 1
select * from `engine` where `engine`.`id` = '2' limit 1
select * from `engine` where `engine`.`id` = '3' limit 1

      

        
        
        
      

    

Thank.