What oil weight is everyone using?

[long tall eta]

15/40 winter, 20/50 summer

[KenC]

m20 - 20w/50 castrol gtx high mileage.
m42 - 20w/50 castrol gtx high mileage.
s14 - half 20w/50 castrol gtx high mileage & half 15w/50 full syn mobil1

Too viscous for the M42's lifters.

[IronHeart e30]

Im running mobile1 10w40 but i also but lucas oil stabilizer it works well for me so far but Im going to do and oil change and I dont know if i should stick to the same or change it. Also does any one have any good suggestion for sparks plugs?

[kingston250]

GTX is my favorite and its quality is wonderful that's why i am using 20w-50 GTX for my car.

[Massimo]

GTX is my favorite and its quality is wonderful that's why i am using 20w-50 GTX for my car.

nice work spam but no one uses 20w-50 gtx

[dnguyen1963]

Im running mobile1 10w40 but i also but lucas oil stabilizer it works well for me so far but Im going to do and oil change and I dont know if i should stick to the same or change it. Also does any one have any good suggestion for sparks plugs?

Depend on your driving habit, but NGK ZGR5A works fine.

[IronHeart e30]

Depend on your driving habit, but NGK ZGR5A works fine.

Do i need to regap them? cause im use to running bosch plt spark plugs.

[sector6]

mobil1 15w50

[Gerta]

m20 - 20w/50 castrol gtx high mileage.
m42 - 20w/50 castrol gtx high mileage.
s14 - half 20w/50 castrol gtx high mileage & half 15w/50 full syn mobil1

I run the same for my m42 as well.

Sent from my DROID RAZR using Tapatalk 2

[dnguyen1963]

Do i need to regap them? cause im use to running bosch plt spark plugs.

They should be pre-gapped. It does not hurt to check because something might happen during shipping.

[Nick_S]

Castrol 20w-50 in my E34 (m50). Still get some lifter tick after 3k miles or so I change it more frequently.

Castrol GTX 10w-40 in the E30 (M42). Seems to do just fine.

[TobyB]

Mine seems to weight about 2lbs a quart...

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[dashboardmonkey]

M50, high miles.
20w 50 in the warmer months

10w 40 in the colder months

Both high mileage oil.

[Alpina]

I have used 10/60 on both engines in my cars,,

but i am going to change to Joe Gibbs 20/50 HOT ROD oil