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13 Rental Car Rules

Michael Flack

IN SEPTEMBER 2017, my wife and I sold our home, car and almost all our earthly possessions. We spent the next four years driving across four continents. Along the way, I learned a great deal about renting a car that, in this rental-car-challenged world, could make your travels less costly and more reliable.

1. I use Expedia, Kayak and Hotwire to compare rental car rates. When you book, pay attention to whether your reservation is free cancellation or pay now (noncancellable). You can sometimes save with a noncancellable booking, but what if your plane is delayed or you cancel your trip?

2. Rental companies use bait-and-switch pricing. You notice a car you like for $30 a day. Since you will be renting for three days, you would expect to be charged $90. Wrong. When you click “book,” the price is now magically $205.72 due to concession fee recovery, vehicle license cost recovery, customer facility charge, tax and whatever else. The upshot: Look carefully at the bottom line before booking.

3. One option is to book a free cancellation rental car and then scour the internet for a better deal. Payment may be charged prior to the fully cancellable date, so—if you cancel—you’ll have to wait for the refund to hit your credit card. If this is a foreign transaction, changes in the exchange rate could cause the refund to be more or less than the initial charge. If it’s less, call your credit card company to ask for the difference. If it’s more, don’t bother.

4. Almost all rental car companies make you pay an extra fee for an extra driver unless it’s your spouse—and some charge for your spouse as well. In some states, such as California, this is against the law. In others, the additional-driver fee is capped. Do your homework and confirm the charge at the rental counter.

5. Beware the manager’s special. The manager’s special generally offers significant savings, but you could end up with a van, mini-van, pickup truck or exotic car that’s hard to drive. Worse yet, your credit card or auto policy may not provide insurance coverage for that type of vehicle.

We rented a manager’s special in Michigan to save $250. It was a Ram 1500 pickup truck. After snaring the rear bumper on a utility pole guy wire—don’t ask—I discovered my insurance didn’t cover pickups. Uh-oh. The wife took it to get the bumper fixed and, because the body shop couldn’t perfectly repair it, she wasn’t charged. When she returned the truck, the rental car company didn’t mind the minor imperfection. It was our lucky day.

6. Most rental car companies will offer you some kind of toll transponder for a fee. In some places, such as New York City and New Jersey, it’s almost a necessity. But in Los Angeles and San Diego, you won’t need it because tolls are paid online via tag number.

If the rental car company charges your credit card for tolls after returning the car, dispute them if they seem unreasonable. After one trip, I noticed a $25 toll charge from the rental car company. As this seemed a little steep, I disputed the charge with my credit card company and won.

7. Document existing damage to the car and take photos or a video of the car prior to leaving the rental car lot. While you’re at it, snap a photo of your rental contract.

We rented a car in Marrakesh, Morocco, and returned it at the Rabat airport. The agent claimed the left front blinker was damaged. Fortunately, I had a photo showing the damage was preexisting. Case dismissed.

8. If the tank isn’t full, take a photo of the gas gauge at pickup and at return. We rented a U-Haul van to move all the worldly possessions of my dear 92-year-old mother. Dropped the van off in Herndon, Virginia, and took a photo of the gas gauge. A few weeks later, I was charged $30 for not returning the van with the same amount of gas it had when I picked it up. I showed them the before and after photos, and the charge was reversed.

9. The collision and comprehensive coverage on your existing auto insurance will generally provide collision and comprehensive insurance for your rental car. Ditto for your liability insurance coverage.

If you don’t own a car, it may be worth it to buy rental car liability insurance that provides liability insurance in the U.S. Have a copy of your insurance card because some rental car companies make you buy liability insurance if you can’t prove you have auto insurance. This happened to me in Puerto Rico.

10. Compare the price you were quoted online with the rental contract you’re being asked to sign. Make sure you understand any and all additional charges, such as toll transponder, GPS and upgrades. If you need to dispute unexpected additional charges, this will help your case with your credit card company.

11. Compare the rental contract price with the amount your credit card is charged. It should be the same as the final invoice that was printed or emailed when you returned the car. If there’s a difference you don’t agree with, dispute the charge. I was once charged $422.72 more than the rental contract price. I disputed it with my credit card and won after I produced a photo of my rental contract price.

12. As a rule, don’t buy collision damage waiver coverage in the U.S. You’re more than adequately covered through your auto insurance and credit card. If you’re renting outside the U.S., review your credit card benefits. Many credit cards specifically exclude this coverage in Israel, Jamaica, the Republic of Ireland and Northern Ireland. If in doubt, get a document from your credit card issuer verifying coverage. You may need to show it at pickup—and, if you don’t have it, you may be required to purchase insurance.

13. Renting an automatic transmission overseas can be quite costly. I rented a car with a manual transmission in Ireland and the U.K., and managed just fine. What one man can do, another can. When backing up, however, just remember to look over the “other” shoulder.

Michael Flack blogs at AfterActionReport.info. He’s a former naval officer and 20-year veteran of the oil and gas industry. Now retired, Mike enjoys traveling, blogging and spreadsheets. Check out his earlier articles.

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25 Comments
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Rick Sany
5 years ago

I don’t see any comments about a GREAT way to find low prices on car rentals. I’ve used this service for 5+ years and it’s a lot easier than scouring the web for cheaper rates. The website / service is http://www.autoslash.com You can use it to find rentals (it will apply any discounts you tell it you have access to, e.g. Costco, frequent flyer programs, certain credit cards, AAA, AARP). You can also request they track a current rental and they send an email when they have located a less expensive rate.

For example, the last trip I took to Lake Tahoe, California (August 2021) the rental started out at $846 for a Full sized car. Autoslash.com was able to find 6 lower prices over the course of 2 months: final cost $361.

I can’t say enough about how fun it is to get an email telling me they found a cheaper rate. It’s especially nice because I don’t have to do any more than enter the details of the rental car reservation (time to enter, about 3 minutes)!

Michael Flack
5 years ago
Reply to  Rick Sany

Autoslash.com sounds intriguing. I’ll definitely give it a try next time, maybe in conjuncture with Rule #3

RideV65S
5 years ago

If you rent in the EZ-Pass area, get one and stick it on the window. Turn off the rental one. Many states don’t take cash anymore and the plate readers will bill the rental companies if you don’t have an EZ-Pass. In my state I can put the car tag number on my EZ-Pass as a rental. Some states issue EZ-Pass boxes with minimal fees + deposits don’t expire.
I also travel with a dashboard GPS. They are usually better than the car nav systems. Just don’t leave your stuff in the car when you rush to the plane.
I had a curbing hit on a recent trip. It was to a busy city I didn’t know so I took CDW. Returned the car, the guy saw the dent, looked at the contract and I never heard a peep afterwards – no papers filed. Sometimes the peace of mind is worth it.

Michael Flack
5 years ago
Reply to  RideV65S

I’m not sure if getting an E-Z Pass for your rental car makes sense unless you travel to the area quite frequently. I agree with the importance of having piece of mind, though if your curbing damaged the tire, the undercarriage, or occurred while you were off-road or drunk, then you would find your piece of mind illusory.

John Wood
5 years ago

To SanLouisKid’s excellent points, if you don’t have an AMEX card, you can enjoy similar benefits by buying the Physical Damage Waiver (PDW) from the rental car company.

Like the AMEX strategy, any claim under the PDW stays off of your insurance record (unless it’s an at-fault accident where your Auto Liability comes into play with the other party).

With the rental, you may be driving an unfamiliar car, in an unfamilar town, going to places you’re visiting for the first time. Possible result: Increased driving risk, as you have a lot of distractions, so buying the PDW lays that increased risk off on the rental car company’s policy, rather than your own.

Convenience. If you have the rental car company’s PDW, and you damage the car, on the day you drop it off at the airport, you just toss them the keys because their insurance is paying for the damage. If you use your own insurance, or your credit card insurance, be prepared to be there awhile completing paperwork, while your flight time draws near.

Also, if you use your credit card option, my understanding is that the rental car company will charge the card instantly for their estimate of the damage (which is frequently overstated), and the insurance proceeds are applied to your new credit card balance (better have ample limit on the card).

Yes, the PDW is no longer a bargain, as the rental car companies have found it to be a profit source. Still, I’m willing to pay the increased cost to lay off the increased risk (with greater convenience), and protect my accident record on my auto policy.