VWaddict

I have almost a quarter of a million miles on mine, ALL using 20W50 SWEPCO dino oil, and the bearings were pulled at 200,000 miles and were still within spec. -The turbo is still in beautiful shape also, which tells me one thing:

...is a completely unqualified statement.

GOOD dino oil changed frequently (mine has been every 3000 miles) can work beautifully.

-And I'm not a dino-oil-snob... my OTHER car has run on synthetic since 5,000 miles and now has over 150,000 on it.

Keith

M758

No,
Oil is good I 20w50 Valvoline VR1 Dino oil. I have for 10 years. The car only over heats due to cooling issues not oil weight.

reno808

DUDE use 20/50 gtx its the best oil you can use on our cars. it needs all the help it can get

333pg333

If it's hot where you are don't even think of using anything with a lower Visc than the 20w/50. We use a 25w/60 on the track.

seattle951

Once the engine heats up, isn't the only number that matters is the high number? In this case 50. My understanding is that the first number is at startup and should be as low as possible. Therefore, 5W-50 is a better choice than 20W-50 because it offers the same high temperature capabilities plus better lubrication at low temperatures.

Do I understand this correctly?

Potomac-Greg

Given that synthetic oil did not exist when these cars were made, I think it's a little over the top to say that our cars can't handle dino.

schwank

GTX 20W50 in both of my cars... I buy it by the case.

brrt50cal

Not exactly. When oil is hot, it gets thinner. Therefore, when the temperature is greater outside, you need a better beginning viscosity. When oil gets cold, it gets thicker. When it's cold as hell outside, you need a smaller starting viscosity. If you run a 5w-50 when the ambient temperature is too hot, the starting viscosity will be too thin and won't eliminate the problems of a cold start.

brrt50cal

Here's a pic to make this easier to understand:

MrPorsche951

I love rennlist. Thanks guys for the amazing education. My car is running great now. I wonder what was going on.

jason952

schaeffer 20 50 part syn, the best!

ehall

Watch your damned temperature! It has ZERO to do with your oil. If it is fluctuating than air is getting into the coolant system...usually, or it can be something more serious. If you get stuck in a bumper to bumper jam, you will be in for a WORLD of hurt.
Also, the temp will rise higher with the A/C on.
Just pay careful attention to this temp. issue.

Get a bottle of STP oil treatment, or similar product that is primarily made up of ZDDP.(there are plenty of other brands avaialable...they all do the same.) Your oil needs it. Add it to your car. If you do this, you can use pretty much any reputable oil.

ehall

20w50 is fine. Go on ebay and buy yourself a Stant pressure tester.

slivel

Mobil 1 was introduced in 1974.

LFA951

+1, VR1 better than GTX!