I just purchased a new oil dipstick and destroyed it while tying to press fit this thing in. Does anybody have any tips on how to get these things in without mutilating?

I used a crescent wrench to catch on a flare, then a buddy using a bar, tapped the wrench, needless to say, I broke it around the flare when trying to press this in.

Any ideas greatly appreciated.

I take mine to the bench grinder,and take a little bit off the outer diameter.Then put a thin layer of silicone sealer on it.
I also tap them in from above after doing this,I use a bolt in the top of it and tap it in with a hammer hitting the bolt head.

Most are super tight.My chrome one I had to grind a bit.I use a 6 point line wrench socket on a long 3/8 extension to install in the car.Rocky

Like the others I had to file mine down a bit and then I used a wrench like you did and added a dab of RTV for good measure

I squeezed the end of the tube in the jig for holding a tube for flaring. Squeezed it just enough so I could tap it in. This process also put little ridges on it that I would think would help make it stick in the hole. Used a little sealer just to be good.

I usally split the tip with a thin hack saw about 3/8", not all the way. Pinch it together ever so slightly, then tap it in with a small open end wrench.Ive been doing it for over 30 years, never a problem. Use sealer!!!

I filed the leading edge and made this tool, after wrecking my first tube..

also , use a little lube to help it slide in..

I've said it before and got some negative responses. I alway drill the block slightly larger. The tube slips in with a small amount of sealer,no leaks ever. In the car would be tough.
Doug

Finally got it in with marginal marring. I took everyone's advice and used 180 sand paper and had sanded the end for about a half hour to finally fit in easily with some RTV coated on the end!

Thanks!