5.0L General DiscussionThis section is for non-tech specific information pertaining to 5.0L Mustangs.
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I wouldn't run a synthetic oil in such a high milage motor. Really if you run a regular conventional oil and change it every 3000 miles or 4-5 monthes your car will be fine oil wise. You could also get shell rotilla oil which is good because it helps keep wear down in your motor from high zinc content.
84 Mustang SVO
86 Mustang GT
What ever oil you were using to get to 184,000 would logically be the same one to continue using....
Did 200,000 on castrol GTX on my old mill and castrol GTX on my present mill, if it worked for the first why would I switch? 10w40 (20w50 in the summer on the old mill) and 10w30 on the newfresh motor, K&N filter..same with every car I own. Never understood why people pay high dollar for oil and skimp on the filter...filtration is far more important than type IMO...as long as it's clean it's the right oil.
Lil red 88 GT sporting Edelbrock RPM small valve heads...little grinder time, Comp XE270HR-12, Typhoon intake, 1.6 scorpions, Pro-M meter, and all the standard boltons I could find.
320/345 on the rollers N/A..ZEX numbers to follow.
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