Intrepid SE 2.7L

• Automatic transmission
• 109,000 miles

I have 109,000 miles on my se 2.7 and so far the only problem I have is a small ticking but I only hear it when Its getting closer to get my oil change. I have been using 10w/30 with lucas additive but recently I changed to 5w/30 with lucas additive, I was told the lighter weight oil will slow down the sludge build up in the 2.7. Ive been reading alot of reviews and everyone has the same problem and Im starting to feel like Im jinxing myself here and Im next for engine failure, to also include my oil pan gasket has also went out and im now being told my rear main seal also went bad and its supposed to cost $1,400 for the repair but the parts cost $20. I would do the repairs myself but you have to take part of the suspension out to replace the oil pan gasket and the rear main seal you have to take out the engine and transmission to replace that $15 part. Im not gonna give up yet on this sporty good looking car, im gonna go as far as my wallet will let me. If anyone has any suggestions regarding stopping or slowing down the sludge build up Im all ears.