I\u2019ve been using Amsoil Sig Series ever since my first break-in oil change. I used it in my old turbo Cobalt SS that I drove like a jackass when I was younger too. Never had any engine issues and Blackstone analysis shows that up to a 4,500 mile oil change interval is safe for my WRX.
Amsoil always over anyone. I started with AMSOIL in 2004 and after pulling my Hayabusa Engine @ 20k miles to build for a turbo kit, the engine teardown was perfect, the block, pistons and bearings looked entirely new.
Have noticed on several times that when I went from Subaru OEM oil to Amsoil BACK to OEM that it runs much quieter and smoother on Amsoil.
But I run Amsoil signature blend in my vehicles. And I also push 15,000-25,000 miles per change.
I have seen my friends and family use amsoil for 25000kms each change and their cars do 200k- 300k without any engine issues.
I already added to engine oil and transmission. 5mpg improvement avg. already.
Switch to Amsoil products and go every 6,000. I honestly would go every 7500 with it if it was me driving that much.
Send your used oil to Blackstone or Amsoil for analysis and all of your questions about oil will be answered.
My GL550 has about 106k miles on it, just did an oil change with LiquiMoly 0w-40 and 2 bottles of LiquiMoly ceratec. Drove it kind of hard for a minute or so. Then noticed when I got back it had this noise.
I used Liqui Moly 10 40 for my 3vzfe 96 camry. The car started making a horrible ticking noise coming from the valve cover. Its at 225k miles. The engine runs good but noise is annoying.
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