Hello Everyone! I'm hoping you guys can help steer me to the right oil. This isn't a typical "what's a good oil to use thread". I apologize for being long winded but want you to know all the details.
Some Backstory.....
My wife has a 2008 Nissan Versa SL with a 1.8L MR18DE engine. 103k miles on the clock. Like many Nissan 4-bangers, the valve train has gotten noisy as of late. Its been getting progressively worse over the years but now that its real cold it has gotten even more noticeable. The first 50k miles were synthetic 5W-30 (Mobil-1, Penzoil, Valvoline, whatever was cheaper) at 5-6k intervals. Since then my wife has been going to the dealer near her work every 4k for conventional 5W-30 oil changes...
The MR18DE does not have hydraulic lifters. The lifters are sized with different thickness to take up the slack. They are non adjustable. Not too much different then a flat tappet cam...just less parts.
I am mechanically able to change the lifters....but really don't want to just yet. Its a huge job an requires removal of the intake manifold, camshafts and timing chain. Then after I measure the play I would have to special order the specific lifters from Nissan. I want to see if the "perfect" oil helps.
Okay....So I've used the Search Button...
Being a hot rod fan I know that flat tappet cams require more zinc and phosphorus. More moly doesn't hurt either. That got me thinking....which synthetics have the best additive package for a noisy valvetrain? Browsing through some VOA's I came across this data (all numbers in PPM)....
Mobil-1 High Mileage Synthetic 5W-30
Manufacturer says: zinc-1100, phos-1000
VOA says: zinc-1015, phos-983, moly-78
VOA Here...
Valvoline MaxLife NextGen Synthetic 5W-30
Manufacturer says: zinc-830, phos-760
VOA says: zinc- 730, phos 650, moly-117
VOA Here...
Amsoil ASL Signature Series 5W-30 Synthetic
Manufacturer says: zinc-806, phos-730, moly-145
VOA says: zinc-822, phos-696, moly-152
VOA Here...
Amsoil Series 3000 HDD Diesel 5W-30 Synthetic
Manufacturer says: ??? Unknown
VOA says: zinc-1365, phos-1107, moly-???
VOA Here....From 2004, VW TDI Forum...Only One I Could Find
Redline 5W-30 Synthetic
Manufacturer says: ??? Unknown
VOA says: zinc-1504, phos-1221, moly-670
VOA Here...
We're Getting There....Stay With Me...
Of course there are other things that matter like TBN, NOACK, Viscosity, etc but I'd have to say that the Redline looks very promising. I wish I could find some more data on the Amsoil HDD because I have a feeling that would be great as well. For over the counter stuff...M1 High Mileage looks pretty good too.
I don't mind spending the money for the good stuff. Does anyone have any experiences with these oils specifically to quiet noisy drivetrain? Anyone have any experiences with the above oils? I appreciate your wisdom!!!
Some Backstory.....
My wife has a 2008 Nissan Versa SL with a 1.8L MR18DE engine. 103k miles on the clock. Like many Nissan 4-bangers, the valve train has gotten noisy as of late. Its been getting progressively worse over the years but now that its real cold it has gotten even more noticeable. The first 50k miles were synthetic 5W-30 (Mobil-1, Penzoil, Valvoline, whatever was cheaper) at 5-6k intervals. Since then my wife has been going to the dealer near her work every 4k for conventional 5W-30 oil changes...
The MR18DE does not have hydraulic lifters. The lifters are sized with different thickness to take up the slack. They are non adjustable. Not too much different then a flat tappet cam...just less parts.
I am mechanically able to change the lifters....but really don't want to just yet. Its a huge job an requires removal of the intake manifold, camshafts and timing chain. Then after I measure the play I would have to special order the specific lifters from Nissan. I want to see if the "perfect" oil helps.
Okay....So I've used the Search Button...
Being a hot rod fan I know that flat tappet cams require more zinc and phosphorus. More moly doesn't hurt either. That got me thinking....which synthetics have the best additive package for a noisy valvetrain? Browsing through some VOA's I came across this data (all numbers in PPM)....
Mobil-1 High Mileage Synthetic 5W-30
Manufacturer says: zinc-1100, phos-1000
VOA says: zinc-1015, phos-983, moly-78
VOA Here...
Valvoline MaxLife NextGen Synthetic 5W-30
Manufacturer says: zinc-830, phos-760
VOA says: zinc- 730, phos 650, moly-117
VOA Here...
Amsoil ASL Signature Series 5W-30 Synthetic
Manufacturer says: zinc-806, phos-730, moly-145
VOA says: zinc-822, phos-696, moly-152
VOA Here...
Amsoil Series 3000 HDD Diesel 5W-30 Synthetic
Manufacturer says: ??? Unknown
VOA says: zinc-1365, phos-1107, moly-???
VOA Here....From 2004, VW TDI Forum...Only One I Could Find
Redline 5W-30 Synthetic
Manufacturer says: ??? Unknown
VOA says: zinc-1504, phos-1221, moly-670
VOA Here...
Of course there are other things that matter like TBN, NOACK, Viscosity, etc but I'd have to say that the Redline looks very promising. I wish I could find some more data on the Amsoil HDD because I have a feeling that would be great as well. For over the counter stuff...M1 High Mileage looks pretty good too.
I don't mind spending the money for the good stuff. Does anyone have any experiences with these oils specifically to quiet noisy drivetrain? Anyone have any experiences with the above oils? I appreciate your wisdom!!!