Trucks aren’t like cars...your average personal vehicle usually holds about 5 quarts of oil, and you are supposed to change it every 3-5k miles. However, the same logic doesn’t apply to large trucks. At Harold's Used Auto Parts Inc in Philadelphia, we know how important proper oil changes and diagnostics are to keep your truck on the road, for hundreds of thousands of miles. Here’s what you need to know:

If you drive a lightweight car, truck, or SUV, the torque converter you have installed is probably just fine. For those of you with more heavy-duty applications, like high horsepower setups or towing rigs, the stock converter may not be enough. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can help with that.

Tire pressure may seem innocuous enough, but at Harold's Used Auto Parts Inc in Philadelphia, we know how much of a difference correct tire pressure makes. Tire pressure checks are just one of many regular service items we check when you bring your truck in for servicing, but it’s one that’s more important than you might think.

Currently, the future of electric vehicles looks promising - though it won’t likely replace your Duramax, Powerstroke, or Cummins engine any time soon. Still, we don’t know what the immediate future holds. This battle was waged once before in the past, with combustion engines taking the throne over electric power. Here’s a brief history of electric automobiles, from Harold's Used Auto Parts Inc in Philadelphia, PA.