Hi all. Finally joined the site after a long time of getting great info on it. So my question is about a 4 stroke trimmer. It's a Husqvarna 324l that I got a great deal on. It states I should run 10w40. What concerns me is it being such a small splash box and how often a trimmer is held out of position. Also they little 4 strokes turn some rpm that mowers never see. So looking for recommendations. I was thinking synthetic and high zinc. I'm assuming I should stay away from anything with detergent to keep it from foaming. I know Joe Gibbs oil fits that description but I came across another oil I've never heard of. It's power plus lubricants. Racing oil for splash boxes. I wouldn't buy it unless I hear some good reviews. And sorry for being anal about oil for my weed whacker but this piece cost some money and I'd like it to last longer than normal.