Join Date: Nov 2006
Location: Central Texas
Feedback Score: 0 reviews
Never used Delco, but have used the smaller Optimas, with mixed results.
If I were going to use Optimas today, I would go to the larger Yellow Top Optima with 900 CCAs also. They are expensive and require redesigning each battery box, but I suspect they are wonderful batteries. And very tough!
The 900 CCAs with these flooded heavy duty Motorcraft batteries would seem to be just what would be needed to really spin these big 7.3L engines, but I have not read much about their durability over the long haul.
Any additional input would be appreciated.
2002 2WD XLT CrewCab, 3.73 Limited Slip, Assembled 08-09-01 in Ford's Cuautitian, Mexico plant. BTS Tranny with 6.0L Cooler, Mobil 1 Synthetic transmission fluid, KC reverse backup lights with separate on/off dash switch, Undercover Bed Lid, Bilstein shocks, Gentex K-21 auto dimming/temp/compass mirror, Michelin LTX/MS2 tires, Factory Aluminum Wheels, Door Seal Mod, Ford Severe Duty AIS w/Zoodad, Royal Purple 75W-140, Fleetrite ELC Coolant, Billet Aluminium Thermostat Housing, Ford Factory Bed Liner, Sylvania Silverstar Ultras. Tekonsha P3 Brake Controller, Dieselsite Max AC Assist. DP-Tuner Infinity with 60hp tow and 80hp city/highway tunes.