After taking delivery of a used 2012 FJ, I tried checking the oil and found the dipstick impossibly hard to pull out. I noticed it is due to the O-ring located below the finger loop. As I pulled it out, the o-ring shattered and now need a replacement. The dipstick naturally does not fit as tight but I am now not sure if oil will come shooting out without the o-ring installed. Do I really need to replace it or is there another solution that will make checking the oil level easier while maintaining a good seal? Thanks for any advice.