50% Redline 10W-30
50% Mobil Delvac 1 5W-40
Car/Motor: 1990 IROC-Z, highly modified. ~380hp to the rear wheels. Not a daily driver - but IS driven on the street. Mostly 1/4 mile stuff in terms of racing. But, this car IS driven hard ... especially since it is more of a toy than transportation. There is ~34K on the STOCK shortblock (topped off with AFR heads, a big cam, and a MiniRam). FWIW, this car is driven on the street much more than it is raced.
Reasoning behind this homebrew:
Benefits of the Mo from the Redline combined with the benefits of the best that Mobil 1 has to offer. Delvac has no Mo so it seems like a match made in heaven. Even diluted by half this mix should still give 300+ of Mo. I picked those weights because I live in MD and the car is not kept in a warm garage. Thus, I wanted something that would flow at 0ºF. Delvac says 65 below zero and Redline 10W-30 indicates 35 below zero so I should be good to go. I didn't pick 10W-40 Redline because I don't want to thicken it up too much because I don't want to lose horsepower to a much thicker oil when the previous 5W-30 was holding up just fine. I liked the idea of thickening it up a little bit with the Delvac in order to be just a little bit on the safe side.
Thoughts or concerns? I already have both oils in my possession for the sole purpose of putting together this home brew.
Tim
[ October 28, 2003, 11:14 PM: Message edited by: Tim_Siford ]
50% Mobil Delvac 1 5W-40
Car/Motor: 1990 IROC-Z, highly modified. ~380hp to the rear wheels. Not a daily driver - but IS driven on the street. Mostly 1/4 mile stuff in terms of racing. But, this car IS driven hard ... especially since it is more of a toy than transportation. There is ~34K on the STOCK shortblock (topped off with AFR heads, a big cam, and a MiniRam). FWIW, this car is driven on the street much more than it is raced.
Reasoning behind this homebrew:
Benefits of the Mo from the Redline combined with the benefits of the best that Mobil 1 has to offer. Delvac has no Mo so it seems like a match made in heaven. Even diluted by half this mix should still give 300+ of Mo. I picked those weights because I live in MD and the car is not kept in a warm garage. Thus, I wanted something that would flow at 0ºF. Delvac says 65 below zero and Redline 10W-30 indicates 35 below zero so I should be good to go. I didn't pick 10W-40 Redline because I don't want to thicken it up too much because I don't want to lose horsepower to a much thicker oil when the previous 5W-30 was holding up just fine. I liked the idea of thickening it up a little bit with the Delvac in order to be just a little bit on the safe side.
Thoughts or concerns? I already have both oils in my possession for the sole purpose of putting together this home brew.
Tim
[ October 28, 2003, 11:14 PM: Message edited by: Tim_Siford ]
