Which Oil Grade?

[tpavlou]

I've got an S7 with a 1983 2l pinto engine and I've trying to figure out which is the best oil grade to use? I've tried replacing my current oil with 20w-50 and my oil pressure drops alarmingly when the engine is warm. Anyone got any ideas what I should be using?

 

TIA

 

Theo

[Guest robinj66]

That is the oil you're supposed to be using.

 

I would suggest you have a problem somewhere - how low is the oil pressure going?

 

What oil were you using before and did you have any problems?

[tpavlou]

When the engine is cold, it sits at about 75psi (think that's right anyway). It's only when the engine is warm and I change gear (ie. put the clutch down) that the pressure drops to about 30. Am I just being paranoid?

 

Don't know what oil was in before as I've only changed the oil once since owning the car.

[BigLee]

Sounds fine to me

 

Diff engine but I only get 35 cold 30 hot and about 15psi on idle (hot) been like that for last 15k miles.

 

Oil Press warning light activates about 7 psi to cater for low oil pressure at an idle of high mileage engines.

[Guest shaggy]

I get around 50psi when cold, drops to 35 psi when hot, and about 5psi on hot idle, so I'd be more than happy if I was getting 40 psi on hot idle.

 

Si

[tpavlou]

Cool. Thanks guys. Not so worried about it now!