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Which 5w30 oils on the shelves right now are low in vii?

Does tcw3 at 1oz to every 5gal of gas delay ignition on a gas engine?

07 TL type S 170k miles slightly weeping oil pump and rear main seal. Oil change is coming up I’ve been thinking of trying either - Mobil 1 EP 0w20 Mobil 1 ESP 0w30 Castrol euro 0w40 Which would you go for or would you go for something entirely different?

Which of these oils would be better at quieting valvetrain chatter? CS in 5w30 has about 300ppm of moly whereas I believe the castrol has about 60-80 if I’m not mistaken? Magnatec is known to be a quiet oil, is EP also known to be as quiet or quieter then magnatec? Car specifies a 20wt, would...

Does anyone know of a high mileage oil that is high in molybdenum and boron?

J35a8 engine with about 150k. I think this might be as a result of a faulty pcv system and/or previous owner neglecting oil changes. Is this bad enough to negatively impact anything? The rocker arm closest to the pcv valve is black and not even just varnished. Which motor oil would you proceed...

Are there any safe seal and gasket conditioners additives out there? I have some non high mileage oil I want to use up, is there any additive out there that will effectively make a non high mileage oil a high mileage oil?

Do any true conventional oils still exist today? Or are they all blends technically?

What do you guys think of this oil? I was kinda surprised to see it is ILSAC GF-6. I believe it’s made by Amalie as it has a AOC stamp on the bottom of the jug. Anyway to pull up detailed specifications of this oil?

If a car has some slight leaks from gaskets or seals would a 30wt leak less? Or would the difference be insignificant?

Does anyone know of any higher HTHS xw20 oils besides redline? Preferably in a high mileage formulation? Being that redline is ester based would it serve as a “high mileage” oil?

I’m sure this topic has been beaten to death but it seems like there is conflicting information. I have a 07 TL that Honda specifies 5w20 for. Some people are of the camp that a 20wt is because of CAFE and does not provide enough protection being too thin. So a 30wt should be used. Others say...