Recent content by Toh1

My car used Dino oil for 150 thousand miles then full synthetic oil after that more 4 years no oil leak there oil seepage but it was there when Dino oil my advice use synthetic blend for 2 to 3 oil change if leak oil go back to Dino oil if not used full synthetic my opinion.

Thanks Dave . I agree clearance oil or cheaper oil is also good to do low mileage oci to clean engine

Dave can you please explain more for gtx ultra clean an Good for sludge clean engine

I think new Mobil 1 extended performance high mileage 20000 mile says it will virtually clean sludge in one oil change and $25 for 5 qt is good price. That only oil that claim to clean sludge my 1 choose

Maybe more AN/or ester that can clean engine.not sure though

Valvoline restore good has especially formulated for ring cleaning but expensive +1 previous member comments if you do want more money go with Rislone engine treatment 100qr

I would suggest to try Rislone engine treatment 100qr or high mileage version.it will clean your engine.

I have check msds no Mobil 1 ep high mileage oil has more 40% poa but msds 100% correct regular ep 0w20 60-70 %poa.

Used the one which is cheapest or find sale or clearance .or try all see which one make you car smooth and less noisy

I think you used Rislone engine treatment I used maybe 1/3 of 32oz and I can see the difference in my engine sound

I think Rislone engine treatment Qr100 kind similar cleaning the engine sludge slow and also contains tm ester.

I think mobil super( full synthetic) is group 3 only or can be used for 7500 miles and Mobil 1 is grp 3,4 little group 5 and rated for up 10000 vanilla and ep for 15000 and ap 20k miles

They have new oil additive call Gt1 high mileage booster that is within api application S

It like regular full synthetic oil because xl is not that great in great in term of $= performance so buy amsoil ss or any other full synthetic will be ok if it meet you car requirements

5w20 full syn =0w20 if you leave in hotter climate or never go below 0f my 2 cents but no data to back up just opinion after reading from here