e30 M20 Oil Change

[Rusty.Piranha]

What oil do you guys typically use for your M20 engine?

[Reichart12]

conventional

[AWDBOB]

A random list of good oil with a solid ZDDP package

Rotella T6 10w40
Rotella T5 15w40
Liqui Moly 10w40
Mobil 1 15w50
Brad Penn 20w50

Oil filter use Wix or Mann.

[audiquattrot]

I use Castrol 20W50 conventional with whatever free filter Pepboys is offering at the time lol.

[325e '87]

A random list of good oil with a solid ZDDP package

Rotella T6 10w40
Rotella T5 15w40
Liqui Moly 10w40
Mobil 1 15w50
Brad Penn 20w50

Oil filter use Wix or Mann.

Rotella T-6 is 5w-40 synthetic. I use it in my truck, Walmart has 2.5gal containers. I will use it in my car if you think it’s good for the m20.

[Stanley Rockafella]

Rotella T4 15w40.
It's conventional and has enough ZDDP to meet the e30's needs.
Also great b/c it meets JASO MA spec so I can run it in my motorcycle

[Todd Black 88]

Extra virgin olive oil.

Or in a pinch, COD liver oil.








Hasn’t this been covered a million times?

[E30-325iS]

Extra virgin olive oil.

Or in a pinch, COD liver oil.








Hasn’t this been covered a million times?

While I can understand wanting to give your car a European flavor by using Extra Virgin Olive Oil, you really should be using Flaxseed Oil.
With use it will form a nice non stick coating on the cast iron block. The reduction in friction can add 20 to 30 HP to a M20.
http://sherylcanter.com/wordpress/2010/01/a-science-based-technique-for-seasoning-cast-iron/[/URL]

[varg]

Rotella T4 15w40, good stuff.

[sampayne]

Valvoline VR1 20w50

[MrBurgundy]

Valvoline VR1 20w50

[digger]

i use a local brand conventional oil 10W-40 for winter and 15W-50 summer, though last summer i retained 10W-40

[uturn]

Bacon grease.... it seasons the cast iron block just right. Just remember to not cook acidic foods like tomato sauce. It attacks the coating and ruins the flavor. Use a m5x nikasil block for that stuff.

[Andre3127]

A friend of mine and I use Shell Rotella T5 15w40. No issues, and it's dirt cheap.

[cscracker]

Rotella T4 15w40 or Valvoline VR1 20w50. These engines need thick oil with high zinc content. If you use oil for modern engines, you won't get that - they're specifically low-zinc, because zinc wears out the catalytic converter.