I run 15w50 year round in South Florida. Runs cooler and 0 lifter tick. If I run 10w30, it sounds like a diesel. Flat tappets like heavier oil- 2005 TJ-X
Mechanics in Western Australia recommend 15w40 even though the book and cap say 10w30 we dont have much of a winter here, rarely gets near zero if ever and its only gets a bit cold as the sun comes up on clear winter sky's but often gets well above 100.
Lol right on! I suppose it’s a personal preference. Mine runs much cooler and like I said no clatter. Can’t complain! Have a good weekend!!Mechanics in Western Australia recommend 15w40 even though the book and cap say 10w30 we dont have much of a winter here, rarely gets near zero if ever and its only gets a bit cold as the sun comes up on clear winter sky's but often gets well above 100.
I put 10w30 in at my last change but will go with 15w40 next because 10w30 is not a common oil here and costs a lot more when you can find it, 15w40 is plentiful and cheap even the expensive oils are cheaper than 10w30.
I have always used thicker oil in older worn motors but the TJ is the first I went with the book recommendation.
I dont think it really matters that much unless you have a BMW or live in a cool or cold climate. years ago I did what most others did in a straight 6 just top up the oil at a gas station with whatever oil they had next to the pump
In Florida we have Coral and it’s nasty stuff. Dries like concrete. The old girl spent its life in Cumberland Tennessee running through mud daily as a pole vehicle. Hit the trails 1 time and it’s taken 4 months to clean it. After 259k miles, it’s fixed to head back to Tennessee and hit the trails. Until then... your correct. She’s a mall cruiser pic before the lift- power washer didn’t even take that crap off-Guessing that never sees the Florida mud?
