Time for an Oil Change and What’s That Ticking? | Project Porsche 911

As we have learned over the past dozen years, living with an air-cooled Porsche hasn’t been too difficult. Maintenance, for the most part, revolves around routine oil changes–just like a regular car.

It was time for an oil change on our 1984 Porsche 911 Carrera, and this time we went with Driven Racing Oil’s GP-1 synthetic blend. Why this one? It’s made with Pennsylvania-grade crude, the same base that gave old-school Kendal its green tint and made it a favorite with Porsche owners for decades. 

GP-1 is a high-zinc product designed for older, flat-tappet engines. It also came recommended by oil specialist Lake Speed Jr. of Speediagnostix–and formerly of Driven. One more thing to like: At $8.99 per quart, GP-1 retails for about half the price of the brand’s full-synthetic offering. 

But something about the Porsche did concern us: a slight tapping from the engine. Time for a valve adjustment? So we asked our mechanic, Lou at Aero Dynamics in South Daytona, Florida, to take a look. Plus, as Porsche prices keep climbing, we enjoy the peace of mind of a regular inspection from a real pro.

The valves were in spec, he reported, although two lifter bushings were a bit noisy. His recommendation: drive car more.

He was right, the Porsche had been sitting a bit. So we put some miles on the car and–guess what?–the ticking went away. 

Join Free Join our community to easily find more project updates.
Comments
View comments on the CMS forums
300zxfreak
300zxfreak Reader
1/3/21 4:09 p.m.

Were the tires still round ?

David S. Wallens
David S. Wallens Editorial Director
1/4/21 10:26 a.m.
300zxfreak said:

Were the tires still round ?

Yes! I took it for a nice drive this weekend--maybe 200 miles total--and the car hums nicely. Look for more updates very soon. 

Sponsored by

ebay

Our Preferred Partners
WpTfPzb3G7vlmjdCALtz6wn25OBEEByxFUQWuRXfmQEWdRjKyP1rOlxEiFZ8cJMO