Beginner's Guide: Save on Car Rentals with AutoSlash Beginner's Guide: Save on Car Rentals with AutoSlash

Beginner's Guide: Save on Car Rentals with AutoSlash

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Renting a car can be a stressful and expensive part of traveling. In this post, we’re going to show you how to utilize the powerful search capabilities of AutoSlash to simplify the process and save you a lot of money along the way. 

AutoSlash is a free, online service that uses a database of discount codes, coupons, and promotions to generate the best prices for any rental car criteria. All you have to do is enter your search criteria, your current memberships and coupon qualifications, and AutoSlash will take care of the rest. Best of all, after making a reservation, AutoSlash can track your rates to see if the price drops!

Save on Car Rentals with Autoslash

Request a Quote

You need a rental car. Now what? Start by heading to Once you've arrived at the AutoSlash home screen, start the process by simply typing where you’d like to pick up your rental car. From there, click through each screen and provide all the typical information: where you'd like to pick up and drop off the car, on which dates you'd like to do so, what kind of vehicle you'd like to rent, etc. You will then arrive at this screen:

How to get a car rental quote on Autoslash

This screen is one of the brilliant differences between AutoSlash and other rental car search engines. Here you're prompted to check all of the memberships, credit cards, and loyalty programs that currently apply to you. The more of these apply, the more varied the coupon codes they will be able to utilize in conjunction with your search, and the better your chances are of saving money. All of these memberships can offer discounts on car rentals, even the ones that are free to join. Before AutoSlash came along, the only way to take advantage of these program discounts was by keeping track of them and searching them one at a time!

Add your name and email, and your request is complete. AutoSlash will analyze the information you've supplied to find the cheapest rental prices and will send you an email with your customized quotes. In my experience, it typically takes 5-10 minutes to receive the email with your quotes.

Autoslash custom quote email confirmation
The email with your custom quotes from AutoSlash will look something like this.

Choose your Preferred Price

Your email will have several prices quoted with different rental agencies and options. Have a look through them to see how they compare. This is also a great time to look for your preferred rental agency — perhaps an agency where you have elite status?

It's important to note that you won't always know which membership discount AutoSlash used to generate any individual quote. For this reason, it's not a good idea to request a quote with a membership you don't actually have. It doesn't happen often, but a thorough agent may request proof of your membership before handing over the keys.

Complete your Reservation

After deciding on your preferred price, there can essentially be four options to complete your booking:

  • Pay later with Priceline
  • Pay later with AutoSlash
  • Pay now with Priceline
  • Pay now with AutoSlash
Car Rental quote from Autoslash
TWO shuttles needed? Yikes.

Priceline is the only booking service that accepts all discount codes and allows renters to book the flexible “Pay Later” rates at major rental agencies. This is why they're the only other option AutoSlash presents to book the rates they find, other than themselves.

It's important to pay close attention to the booking option you choose. I'll discuss this more later, but you should always opt for the more flexible “Pay Later” rates. That way if plans change, you won't get hit with a bill for a rental car you didn't use.

After selecting your rate, you're prompted for your name, email, phone number, and driver's license information. You're also asked if you'd like to cover your rental car with a Collision/Damage Protection policy, which you'll happily decline, assuming that you pay for your rental with a credit card that offers Primary CDW (Collision/Damage Waiver) coverage for rental cars. (Leave your Citi card in your wallet for this one.)

Rental car reservation from Autoslash

Depending on which rental agency you're booking with, there may also be optional drop-down windows. Here you can make special requests, add your applicable loyalty number, and provide your flight details. After you've finished filling everything out, click the “Reserve My Rental Car” button, and you're done.

Track Price Drops

Now that you've made your reservation, you'll want to be notified if the same car goes on sale even cheaper. Thankfully, this is one of the other brilliant differences between AutoSlash and other rental car search engines. They'll also track your price. All you have to do is return to their homepage to fill out their “Track a Rental” form.

Track rental car price drops with Autoslash

By now you'll have received an email confirmation from whoever you ended up completing your reservation with. To track the same criteria for price drops, you'll need the confirmation number, final price, and pick-up date from that email. Just as before, follow the prompts to enter that information on each successive screen until you arrive at the final page confirming your price tracking request.

Now all you have to do is sit back and wait. Depending on how far in advance you've made your reservation (the earlier the better), it's likely that AutoSlash will find a lower rate available between now and your pick-up date. If they do, you'll get an email like this:

Track car rental prices with Autoslash

Re-Booking the Cheaper Price

Re-booking the new rate is exactly the same process as before. Just make sure you go back afterwards and cancel your previous reservation. As AutoSlash points out, this is “to ensure you get the correct rate and avoid any applicable cancellation or no-show fees“. This is why it's so important to book the flexible “Pay Later” rates.

Once you've made the new reservation and canceled the old one, set another price tracking request on AutoSlash's homepage for the new price. Rinse and repeat. I've had reservations where AutoSlash found five successively cheaper rates than the one I originally booked!

So, what if AutoSlash doesn't send you an email with lower rates? Well, then, you can pat yourself on the back because you've managed to snag the best rental car deal out there for your dates.

Search Available Coupons

AutoSlash also has a third handy feature: you can search through their coupon catalog yourself. This search page lets you filter for specific agencies, dates, and pick-up locations. Personally, I think it's a lot faster to let AutoSlash do all the searching for me with normal rate requests; however, I can see how this feature could be useful.

Autoslash car rental confirmation coupon

Pro Tips

  • Play around with your pick-up and drop-off locations.

The idea behind this is simple: neighborhood rental agencies tend to be cheaper than airport agencies. If arriving at an airport, you may be able to save a lot of money if you are willing to take a short ride to a neighborhood rental location. A lot of my cheapest car rentals were one-way from neighborhood locations to my departing airport. Compare the prices and see if it's worth it for you.

  • Only book the more flexible “Pay Later” rates.

This is worth repeating. Pay Later rates don't involve a down payment, they don't have any forgettable cancellation policy, and they make taking full advantage of AutoSlash's price tracking a no-brainer. Even if you can save a little bit of money by locking yourself into a “Pay Now” rate, it won't be worth the hassle if your plans change.

  • Request pick-up and drop-off times that fall squarely on 24-hour marks.

Rental car prices are generally calculated based on daily, weekly, or monthly rates. That means that even if you need a rental car for only a few hours, you're most likely going to be charged the same as a full day.

  • It's okay to pick up a rental car a little late, and it's okay to drop off a rental car a little early.

Avoid the opposite. That's where you can run into fees!

  • Add your rental agency loyalty numbers when booking.

For all “Pay Later” rates, you're able to add your membership numbers at the time of booking. This makes it easy to reserve the best price as well as take advantage of any loyalty status benefits. Don't have any status? Getting status might be easier than you thought. Personally, I've only had seamless experiences with agencies honoring status and awarding points with AutoSlash bookings. If you've experienced something different, please let us know in the comments so we can edit the post going forward.

  • Book weekly or monthly rates to save even more.

Rental agencies routinely offer steep discounts on weekly and monthly rentals. If your schedule allows it, try requesting a rate for seven days instead of six. The price difference might surprise you!

  • Only book with the rental agencies that have solid ratings.

Rental agencies with poor AutoSlash star-ratings have a history of customer service issues. I've experienced a lot of the common issues firsthand, and trust me, they're not worth the savings. Stick to booking with the best agencies. You'll be glad you did.

Get discounted rental cars with Autoslash

One of my favorite ways to use AutoSlash is to find deeply discounted mid-size cars with National. This lets me utilize my National Executive Status granted by my Chase Sapphire Reserve®. Bypass the counter entirely, choose whichever car you'd prefer at the Executive Emerald Aisle, and drive away!

Final Thoughts

AutoSlash is an invaluable resource for road warriors and occasional travelers alike. We hope that utilizing the tips above in conjunction with AutoSlash’s services will take all the guesswork out of the rental car experience and save you a lot of money. 

Have you had good experiences with AutoSlash? Do you have any other Pro Tips you think we missed? Let us know in the comments.

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  • Judy Schneider says:

    What does “special car” mean for Dollar and Thrifty?

    • I don’t have first-hand experience with Dollar / Thrifty “special car”, but I believe this refers to a discount in exchange for letting the location pick the type of car you get. Essentially, you pay for a compact, but you might get a full-size car or minivan instead. I just got a “mystery car” with Avis, and ended up with a nice Toyota Corola.

  • Thank you for this post! This is the first time I hear from this rental car.

  • Thanks for the article, found it useful!

  • Thanks. With the mainstream discount sites so close in prices, this is a great way to try to get a better rate!

  • Great information on this! Sorry if this was covered and I missed it but wondering if car insurance which is integrated into a credit card is still honoured through the use of AutoSlash? I have the American Express Platinum and decline insurance through the car rental company all the time and am hoping this would still apply. Does anyone know offhand?

    Thank you!!

    • Using Autoslash would have no effect on your insurance. You don’t pay Autoslash. You pay the rental car company directly. Think of Autoslash as a search engine for rental deals.

  • what is the success that people have had using this as compared to the other available websites that claim to provide a similar service

  • love autoslash!

  • The ProTips alone are worth remembering even if one doesn’t use AutoSlash.

  • Autoslash has saved me lots of money over the years. But I have found that I am better off if I do some additional searching on my own. For example, for an upcoming reservation, I was able to find a mid-size SUV for almost the same price as intermediate car by doing my own searching along with using Autoslash. Also, in the past I have found that Autoslash does not search for better prices all the time. So, I have found better deals on my own in some circumstances.

  • Very useful suggestions for using AutoSlash. Thanks.
    Till now I have always been hesitant but now I would try to use it.

  • gonna try it out! this is a great site!

  • I used to use RentalCarMomma to research car rental coupons/prices, but haven’t been happy with that site in recent months. Definitely going to be using AutoSlash for future rentals

  • AutoSlash is great. It stacks with my other rewards programs saving money both on the front end (lower price) and the back end (rewards)

  • Bill from Maine says:

    I just moved my minivan rental I previously made with Alamo ($335.00) and moved it with AutoSlash to a rental with Hertz ($279.00) for a $56.00 savings. I also saved myself $9.95 a day for a child’s booster seat because my Hertz Rental also included a free booster seat with the rental. I’m sold.

  • Takes a bit of work to save some money.

  • AutoSlash is a super useful tool for saving on rental car bookings. Love stacking with enterprise/costco also

  • I’d never heard of this site – definitely something I’ll have to checkout!

  • Thank you for your detailed and insightful guide. As I have passed my test not that long ago I find looking for a car rental in is a tricky process.
    This information is helpful.

  • Lawrence Lau says:

    Thank you for the information about autoslash, I have been looking for something like this.

  • Thanks. This sounds good although I haven’t tried this before. Thanks in advance.

  • Juan Ignacio says:

    I always use Autoslash but I haven’t heard of this service before, thanks for this.

  • Jeff Lansman says:

    I tried to check it out, but it will not accept my email. It says my email is not a deliverable email address. I would look elsewhere.

  • As always, this is quite an extensive writeup! Thanks for this.

  • Shaul Weintraub says:

    never tried it, but thanks for the clear and precise step by step, will deff. try for next rental

  • I haven’t heard of this service before, but is certainly something I am going to look into further.

  • Autoslash is a great option for car rentals. Nice article for beginners.

  • I’ve never heard of this site, but I’ll be sure to check it out! Thanks.

  • AutoSlash has saved me hundreds, if not thousands, of dollars over the years! Thanks!

  • This is new to me but anything that saves a few bucks is worth looking into

  • I always check AutoSlash for better rates. It is another helpful tool. Sometimes it is beneficial, occasionally not.
    You provided a great and detailed explanation of how to use it. Thank you!

  • Thanks for the information!

  • Good tool. Has to re-check few times to make sure the rate is still the lowest closer to the travel dates, sometimes it finds even cheaper price.

  • I have heard about Autoslash previously, but this explanation of the process will enable me to jump on this immediately! Thank you!

  • I’ve never heard of this website before, but it sounds promising, especially that it tracks prices.

  • I never heard of this service before but this is why I read this blog!

  • There should be more articles on car rental deals on this site.

  • I tried using Autoslash once but I couldn’t get comfortable with the idea. Rental cars are one thing for me that I prefer to book through one of the normal online travel agencies. But for people who do take advantage of this booking process, it seems that they could save quite a bit.

    • Once you’re booked, autoslash doesn’t sit in the middle in any way, particularly for all Pay Later bookings: you make the booking itself through Priceline, then you can even look it up directly on the car rental company’s site with the confirmation number provided. It doesn’t get any more “normal” than that!

  • I’ve never heard of this service. Always good to have more arrows in the quiver. Thanks for the heads up.

  • I was not familiar with AutoSlash. Very interesting information!

  • Wow!! Sounds incredible and this is a totally new option for me!! Is it international???
    Thanks so much!!!!!

  • This looks like a really nice application!!! I haven’t used it, but I definitely will be checking it out for my next trip!

  • This appears to be a very valuable tool that I’ll be bookmarking in my web browser. Thank you for bringing sites like this to the attention of us newbies and less experienced travelers!

  • This will make searching the best price for rental cars so easy and convenient

  • I always use Autoslash, with my Costco discount I always save money!

  • AutoSlash is invaluable. Saves me money (usually significantly) about 95% of the time. No-brainer.

  • I don’t rent a ton of cars, but I have used AutoSlash and found it effective for finding lower rates, even in that limited sample size. It’s definitely worth the minimal effort to set up price-drop alerts.

  • Beware booking TOO many extra days (for a weekly rate), some contracts ding you for returning early.

  • I have used Autoslash but BE CAREFUL


    Asked Autoslash to try to better a Costco rental price from CLE to Downtown Cleveland.
    They changed the return location to a Cleveland suburb. I did not catch it until pick up.
    Had to pay “walk up” price at airport as had canceled Costco booking.
    Sort of reminds me of the “creative geography” used by Hotwire and Priceline in stating neighborhoods of their hotels.

    Asked for a seven day van rental in downtown San Francisco, got a great price but Enterprise changed that location’s hours and it was no longer open on the Sunday I was to pick up car. Got no help from Autoslash. Had it been booked directly with Enterprise via the Costco portal they would have transferred the rental to a location that was open on Sunday.

    In States where second driver charges are allowed – Costco rate always includes 2nd driver even if not related or employed by same company .

    • I have never had AutoSlash change a location on me – – you just need to be specific with your request.

    • Thanks, Jon. I haven’t had any problems with them, but that doesn’t mean the service is perfect, of course. I tend to review everything too much to begin with, but all this is worth noting.

  • Thank you! This is the first time I hear from AutoSlash…