Engine Oil Type and Weight?

[BJ7archaeologist]

I'm in the process of changing my oil on my BJ-7 and I have a bottle of Topco to add. I forget what kind of oil and weight I used last time. Suggestions?

 

[nevets]

I use Castrol GTX 20W 50 HD, no additives.

 

[Marvin Gruber]

Same as above for the last 30+ years

Marv

 

[Keoke]

I'm in the process of changing my oil on my BJ-7 and I have a bottle of Topco to add. I forget what kind of oil and weight I used last time. Suggestions?

[1] Keep a written log of your cars maintenance.

Leave the "Toco " on the shelf.

Use Valvoline racing-VR1- 40, 50 or 60 weight depending on engine wear.

 

[Robert560]

I too am using Valvoline VR1 - 20W-50

~Bob

 

[pkmh]

Keoke,

I am using the VR1 20w50 as you suggested to me. I noticed my oil pressure at idle now reading around 50~60 lb. I see you list 40, 50 or 60 depending on wear. Is 40 for more or less wear? If at 50-60 lb, what weight is recommended?

PKMH

 

[TimK]

Are you reporting the pressure when cold, or when hot? Cold pressure is usually max at 60 or so. When hot on a tight engine it should be at 40, or 20 with a good but worn engine.

 

[Keoke]

Keoke,

I am using the VR1 20w50 as you suggested to me. I noticed my oil pressure at idle now reading around 50~60 lb. I see you list 40, 50 or 60 depending on wear. Is 40 for more or less wear?---Less wear.


If at 50-60 lb, what weight is recommended?---For a low engine temperature idiling pressure in this range the 50 weight should be adequate.---Keoke

PKMH

 

[pkmh]

Thanks Keoke and TimK. I wil make a note of that.