Hello. Long time lurker first time poster. I am a full time Mechanic. I have a 1999 Ford Escort ZX2 with the 2.0l DOHC Ztec engine with a 5 spd MTX. I have been a long time Shell Rotella user. I run it in everything. Anyway, I recently switched from 10w-30 Rotella to 5w-20 Motorcraft Synthetic blend oil to help increase fuel economy. I always run a Motorcraft FL-400S filter.
After the first oil change (done every 2,000 miles) I noticed the Motorcraft oil was quite clean compared to the Rotella. Knowing that there is less detergents in the gasoline oil compared to the Diesel Rotella. But the change was quite considerate. I recently heard that Rotella has pulled all zinc from their oils. Is this true?
I am looking for a new oil recommendation. I am looking for the lightest weight oil for my application. I want to stay with dino oil as well. Unless I can be convinced to make the switch to synthetic. I am a huge fan of frequent oil changes (or a bypass oil filter system) The car has, 105k miles on it. I live in south Florida. Temps range from 110*-40*F depending on the season. I usually change the oil weight up or down depending on expected temperatures. I drive the car mostly on the highway (55MPH @2600RPM & 65MPH @3100RPM) for 30-40 minutes 7 days a week. The car does see a fair amount of city driving. By most peoples definitions, I drive the car hard. It will see WOT on a daily basis.
I was eyeballing Amalie oils but cant find too much on their products. I also refuse to knowingly run any BP products. I used to be a diehard Castrol GTX user but since stopped.
Any questions or comments are welcome. Thanks in advance. (sorry for the lengthy post)