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The 4.3 is a 90 degree. GM 2.8, 3.1, etc. are 60 deg V6. To answer your question, yes, a slight shake is the nature of a 90 degree V6 such as the GM Vortec 4.3. A 60 deg V6 would have no primary shaking force and wold feel smoother, though an inline 6 would be the smoothest of the sixes.

I have a Toyota GR Series V6 and it always gets a 0.3 for insolubles when I use a regular Toyota Oil Filter with M1 0W-30 AFE and I go on average 5,200+ miles between changes (I will go 7,500 - 10,000 easy after waranty is up). My Dad has a 2007 GM 3.6 and he got a 0.3 for insolubles with ~6,400...

Originally Posted By: ron in sc Just bought a 2009 Toyota Avalon. Manual says 5W30 for best combination of cold weather starting and fuel economy. Temperature where I drive will rarely get below freezing. So I would not think I need -20 degree F protection. My first consern is reducing wear and...

Originally Posted By: demarpaint Anyone have any complaints with noise and Mobil 1 0W-20? All I've been hearing/reading is that its pretty good? Frank D I switched from Amsoil SSO 0W-30 to Mobil 1 AFE 0W-30 and have noticed no perceptable difference in valvetrain or engine noise. The Direct...

Is your engine a GR Series (2GR-FE). I think that starting with model year 2007 the Sienna came with that engine. I have the 4GR-FSE in my car. There was a recall or TSB from Toyota having to do with the pin which holds the valves in position when the engine is turned off or something like that...

Thanks to everyone for their insightful responses. This was a tough call. I went and bought the PP 5W-30, then read about Toyota engines and Mobil 1 per the recommendations made on this thread and decided to go with the Mobil 1 at the after researching. I think either oil would be great in...

I need advice choosing between the new Mobil 1 0W-30 with the green cap and PP 5W-30. I have a Toyota 4GR-FSE direct injection gas 2.5L V6. I am currently running Amsoil SSO 0W-30, which now costs more than I wish to spend. I know to get your money out of that oil, you need to do extended drain...

I have the 4GR-FSE (204HP, 2.5L, Direct Injection) in my IS250. I ran the FF to 5,000 miles, then ran M1 5W-30EP at 10K and 15K. I have run Amsoil SSO 0W-30 at 20K and 25K. I was happy with the M1 5W-30EP, Fe was 16 at 5K, which is acceptable. Due to the increasing prices of Amsoil, I may switch...

Originally Posted By: AzFireGuy79 Good to know. I might just go with Amsoil ASM 0w-20 if thats the case. Hopefully it will work in my g/f's 05 3.3 Camry SE as well. Buying all kinds of different weight oils is going to start to P**s me off! Although it looks like many of the major auto makers...

I was debating about taking the valve cover off to determine how bad it is... as the critic mentioned, I cannot see inside there too well, but there appears to be sludge oozing from the visible metal piece. Also, when I ran my finger over the back of the oil fill cap, the sludge remained on my...

My parents recently inherited my Grandma's 2001 Saturn SC2 Coupe. The car had 17K miles on it and I know she had the oil changed every 4 months (completly unecessary, I know). I checked the oil, it looked fine. Then, I opened the oil fill cap and looked inside, Sludge on the cap and obvious...