Not likely. If you have a noisy lifter then its oil port is probably plugged because you didn't change the oil and it's too late for synthetic oil to help you. Try it, though, because the alternative is a lot more costly.
no, if anything it will get worse, synthetic oil has a lower viscosity than mineral oils (i.e it is runnier). but using a heavier oil is not always good for your car, i.e if you live in a very cold place, you want a very thin oil as the start up can be very taxing on an engine, but that wont affect your lifter noise. if it is indeed a lifter ticking, get it serviced, & get the lifters reset. it may simply be a noise that is normal for that car, some of them do & some of them dont.
Fully synthetic
Depends on how bad it is. Next time you change the oil, try an additive (STP - Marvel Mystery Oil- etc.) along with the fresh oil. Just might be good for another 155K. When you change the oil, put in 10 quarts and you may find that the lifter tap noise goes away. Using Mobil 1 fully synthetic 5-30 oil may also help.
Lifter is a noun.
Probably a sticking lifter; put in a can of RISLONE every time you change oil for the next few times; that should do it if it is just a minor problem. A chirping noise can also be a defective drive belt. I haven't heard of a chirping noise before, but I've heard of lifter tapping. If it's just some light lifter tapping, add some Lucas oil stabilizer next oil change. This is really good stuff that adds extra lubricants and protectants to the oil for better engine performance and durability. Adding this to your oil should take out any light lifter noise or tapping. I run this in my 94 Z along with full synthetic Mobil 1. They make the Lucas oil stabilizer in synthetic as well. Hope this helps you out.
a car lifter or a motor lifter
Take a pushrod and push down on the plunger in the lifter. A hydraulic lifter is spring loaded.
Lifter Puller was created in 1994.
Lifter Puller ended in 2000.
If you a hydrolic lifter... Lifter is about $20 + plus labor 1-2 hours.
The cast of Lifter - 2010 includes: Bjorn Sommer as Lifter Ken Thelosen as Man
A hyena is dreaded as a "baby lifter."