Recent content by amelbye

In fact I was about to install a block heater last weekend. It's supposed to go into a threaded hole at the rear of the cylinder head, but the space back there is very tight and the plug currently in the hole was stuck. I can tell that some PO has been at it before and he probably gave up as...

I was not aware of that calculator, thanks!

Thanks for the input - so the bearing failures with 5w oils may just be coincidental... Yes, I meant 5w-50. I'd rather use an oil that already has enough ZDDP - like the VR1 or the M1 15w-50. M1 15-w-50 is a god suggestion. However I'd have to order it from the US, as it's not sold in Europe...

Winter rating means how thick the oil will be when cold. Lower number=thinner when cold. Thicker oils may compensate for the larger clearances in older engine designs. If I missed something, please tell me what I missed.

the theory is that 5w and 0w oils are too thin on cold starts... No real science here, it's just based on the experience of a few race teams. 5w20 kills more rod bearings than 20w50 in these engines

The reason for not wanting to use 5w50 is the reports of 5w50 oils eating rod bearings in these engines. Besides, I already have a few boxes of 20w50 on the shelf. I could always sell them on off course, but 5w50 is not ideal. I'm not against changing brands, I just don't know of a good...

Hi, I registered on this forum, because it seems to be the best place for oil related questions. The car is a 1990 Porsche 944 S2. I've been running Valvoline VR1 20w50 for 2-3 years. It works well in the spring/summer/fall and I've usually hibernated the car in winter. However, things have...