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I bought my 96 LS 400 with 78000 miles car now has 109000. Question is I don't know what kind of oil was in it before I bought it now sounds like valves are ticking I use 5w-30 halvoline do you think it might have had 10w-30? I had the 90000 mile service done already! Everything was ok! I'm thinking I need thicker weight?
The valve ticking is normal on the 90 to 94 lexus my got so bad I had to have the dealer ajust my valves which did quiet them down but it cost $885.00 it takes 7-9 hours to do the job. They also found a huge build up of carbon in my air intake and cleaned it out and the car now runs like a rocket. I have been using mobil one synthetic oil since 1985 in toyota's and have gotten 429,000 miles out of the engine and transmission power steering and rear end all using synthetic fluids the damn stuff seems to work. I now have 205k on my 91 lexus using all synthetic fluids and so far everything working perfect.
me too. I'm gonna switch back to a heavier oil next time.my engine is a bit louder(stronger but safe ticking) than i remember on the thicker synth. i saw no increase in mileage.