Rezonans

So the best choice would be 10w30 Shell Rotella T ?

Thank you for reply, what is the right oil viscosity for the truck, I am planning to put something like 10w30 with zddp adative. Is any cheap way to make 22r engine little more powerful, without putting turbo on it, it look like turbo will cost about 2k in parts only.

Hello everyone, I am a new owner of 1986 toyota Itasca 19 ft, I'd like to now few things about the new buy. The motor home is in OK condition, I got it in Nevada, it was sitting in the desert for 10 years, but it's ok, it has 90 000 miles on it. The engine is a bit noisy, drives good, I make 300 miles from Las Vegas back to LA with no problem. Before I make my first trip to LA, I put some Seafoam to engine oil and put a fuel injector cleaner in a fuel tank. RV is little slow but I can easily get 65 mph on freeway and up the hill from 1000 ft to 5000 ft on I-15 about 40 mph. I want to do some TLC, fix engine noise looks like valves or chain tensioner or exhaust gasket. Also I need to prepare truck to pass California smog check. What kind of engine oil I should I use is spark plug gap 0.030 is ok, what kind diff oil, (regular or synthetic) how much in rear axle 6 lug I have PDF service Shop manual for 1988 Toyota hilux truck/ 4runner, can I follow it all the way, or because I have RV, based on Toyota truck the specs is little different. Thank you.