Yes
the only thing I use scissor jacks for is changing a flat tire on the side of a FLAT and LEVEL road. everything else I use hydraulic jacks to lift the car, jackstands to support the car and real wheel chocks to keep it from rolling not 2x4s. I've heard and read that scissor jacks should not be used to change tires on cars because they're dangerous. Yet besides at a shop I've only seen people use scissor jacks and I've changed tires with scissor jacks... I'm looking to buy a jack and wondering what's a good affordable one for the car. Picture of a Scissor Jack for those who don't know: (\ /) (. .) c('')('') ☆♠$☆ Scissor jack may be more stable, but, a bottle jack support more weight, depending on the rated tons. I use a floor/trolley jack when at home and scissor jack for on the road. I do keep a small 1 1/2 ton bottle jack if I need additional support. Most times I use bottle jacks to help my friends level a Mobile Home or House. This 20 ton jacks. I have a trolley jack for home use which is fine... but I know almost nothing about scissor jacks or bottle jacks for keeping in the car when away from home. 2.) If you notice your scissor jack getting very hard to turn, this is probably the first sign of failure. Look very closely at the threaded screw and what it passes through. Make sure there are no metal strands wrapped around the threaded screw-a sign of failing threads. 3.) Don't use just any scissor jack on any car. I always used only my Taurus jack with my Taurus, but occasionally I'd use my Colt scissor jack too. I noticed this weekend that the design of these two scissor jacks is quite different. Lugging out the floor jack is a pain in the ### for me. Also, I don't have the slotted adapter that fits on the face of the floor jack to lift up my cars. I used a double 2x4 this weekend, but I'll be getting the adapter (or making one) very soon because I won't be using the scissor jack anymore. Keep this product clean. A properly main-tained tool is easier to control. Do not use damaged tools and equipment. Tag damaged tools and equipment “Do not use” until repaired. Check for misalignment or binding of moving parts, loose or broken parts, and any other condition that may affect the Scissor Jack’s operation. All-Aluminum Scissor Jack with all the features of a metal scissor jack but Only weighs 2 pounds with handle has anyone else ever gotten one before because its So cool. I found it and thats all i thought id share. All-Aluminum Scissor Jack wow.  Either jack stands or wheel ramps are absolutely necessary whenever a car is raised off its wheels. Jack stands can be used with scissor jacks, single piston hydraulic jacks, or hydraulic floor jacks; simply use the jack to raise one wheel at a time high enough to get the stand underneath and in place. The capacity (in tons) is usually stamped on the jack stand.  Of the two, I would prefer the bottle jack. Scissor jacks have the infamous nickname of suicide jacks. The reason they are called this is becuase they tend to buckle without warning. If you are under the car.... thus, suicide jack. They are made of cheap stamped steel and are highly unstable. I have a trolley jack for home use which is fine... but I know almost nothing about scissor jacks or bottle jacks for keeping in the car when away from home.
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are scissor jacks dangerous