I don't know why but Greddy oil reminds me of Liquid Cosworth oil. Maybe b/c they came out around the same time?
Can any chain parts store order Greddy parts? I doubt it. Greddy's site does list stocking dealers. http://www.greddy.com/home/?id=200
http://www.racinglab.com/grenoi.html
On the net the 5w30 and 5w40 are $9/qt, the 10w60 is $12/qt. For something a little cheaper you could try to find Liqui-Moly 10w60.
Can any chain parts store order Greddy parts? I doubt it. Greddy's site does list stocking dealers. http://www.greddy.com/home/?id=200
http://www.racinglab.com/grenoi.html
On the net the 5w30 and 5w40 are $9/qt, the 10w60 is $12/qt. For something a little cheaper you could try to find Liqui-Moly 10w60.