Engine oil additives for Engine noise?
#16
Your vehicle is NEVER too young to use additives! I am a car fanatic, just look at my signature. I think you should spend some time on www.bobistheoilguy and learn a few things.
To answer the OP question, try using some VSOT(valvoline synpower oil treatment) comes in a silver bottle and has a lot of molybdenum which is a friction reducer. I can bet any money that this will do the trick. Normal direction are to use 1oz per quart of oil, so for the ES350 use 6 ounces(180mls) Also change to a synthetic oil, it flows better than dino oil and could also solve your problem.
#17
I feel the 3.5L is much more powerful, smoother, etc. The 3.3L has not given any trouble, but is not very powerful. I know it is a van, but I wish it had more pick up and go. For 2007, Toyota is dropping the 3.5L in the Sienna. Smart move.
#18
Just wondering if anyone having the cold engine start-up valve tapping noise has considered trying an engine oil additive such as Rislone (there are others too). I've had very good results with this in the past (though admittedly on older vehicles). Their website states it will not void new vehicle warranties (don't know how Lexus feels about that). I am not recommending the product - only wondering if anyone has considered it. I realize these are very new cars and should not need additives to operate flawlessly.
Please check your owners manual as the GS300 AWD has a little tapping sound which is part of the fuel injection system they use now.This is probably the same thing.
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