<p>If you <a href="https://www.thoughtco.com/check-your-oil-281722" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">checked your oil</a> and found the level to be low, you should add a quart. Oil is sold in quarts, so if you grab a plastic bottle at your local giganti-gas, you&#39;ve got a quart. There are different types of oil, called &#34;weights,&#34; so check your car&#39;s owner&#39;s manual to see what they recommend. If you can&#39;t find the manual or you&#39;re in a pinch, you can always add a quart of 10W-30 or 10W-40 safely (they&#39;re labeled right on the front). If you&#39;re extra worried about cleanliness, buy a funnel, too, but it&#39;s not a must. With your hood safely propped open, look for a big screw cap right in the middle of the engine. It&#39;ll have a picture of what looks like a watering can on it, and some even say OIL. Again, you can consult the owner&#39;s manual on this. Unscrew the cap, and put it someplace safe, <b>where you won&#39;t forget it!</b> Believe me, leaving the cap off can be messy and even dangerous. My engine caught fire one time when I forgot to put the cap back on. I ran up and down the highway off-ramp like a chicken until somebody gave me a 2-liter bottle of Sprite. I&#39;d hate to see you in the same place. If you can, put the cap over the hole in the hood latch so that you can&#39;t close the hood without putting the cap back on. So, with the cap off, carefully and slowly pour your quart into the engine. Don&#39;t worry if you spill a little, you won&#39;t do any damage but it might smoke and stink a little when you start the car. I like to wipe up any spills to keep the evergreen forest smell fresh inside my car. Put the cap back on the oil fill hole and you&#39;re done. You&#39;ve just reduced the wear inside your engine by a <i>lot</i>!<br/><br/><b>Remember:</b></p><ul><li>Only add one quart at a time. </li><li>Put the cap back on! </li></ul><br/>It&#39;s a good idea to <a href="https://www.thoughtco.com/check-your-oil-281722" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="2">check your oil</a> again after doing some driving, just to be sure you&#39;re at the right level.<br/><br/>That&#39;s one more step toward automotive empowerment. Do it!