We've tested and reviewed products since 1936. Read CR's review of the Predator 57063 generator to find out if it's worth it.

If you're looking to power your RV while on the go, Harbor Freight's 30AMP Predator Parallel Kit has plenty of juice. Here's how the generator works.

If you want a Harbor Freight Predator generator, you'll want to make sure you know which oil to use for peak performance no matter the time of year.