Quote:
Originally Posted by pzero
So far this is what I'm using:
Engine: Mobil 1 5W-30 synthetic motor oil
Trans: Red Line D4 ATF SKU: 30504
Diff: Red Line 75W90 GL-5 Gear Oil SKU: 57904
Please let me know if these snake oil is good enough for regular weekend driving for my Z/28. Dang, cars now these days are so technical. Back in the days I used the cheapest Motor oil, ATF, & diff gear oil with no problem. Now these days there are so dang many different kind and color, it can drive you crazy thinking about it.
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Ok my Z is now at 10,000 miles. Friday night, my family got nothing going on so I decided to work on trans and diff fluid. In the box 1 qt of red line GL5 gear oil, 5 qt of red line D4, and some cold shiner (after I’m done of course).
Jacked up all 4 corners, changed out diff fluid, changed out trans fluid, and took it for a ride and man I got to tell you it was smooth. In the past used AC Delco but this was the first time using red line and I can feel and hear the difference. No wonder a lot of people are talking about red line. This stuff is great.
On the side note, trans and the diff fluid was really really dirty. After seeing the how dirty it was, I wouldn’t follow the GM maintenance schedule. I would change it at least every 10,000 miles on those two areas. Oil every 5000, trans and diff at least 10,000 (best at 5000), brake fluid at least 10,000, coolant at least 10,000 or 5 years. My next project is brake and coolant.
Happy Friday 13th. I’m going to have some cold ones now.