Just got off the phone with FRPP (Ford Racing and Performance Parts).
Question: Do you recommend the use of 5W20 in a 2004 Ford Focus for Extreme Duty ie Autox or Track Schools?
Answer: NO!
Question: What do you recommend?
Answer: Quality Full Synthetic 10W30 Below 80F (27C), Quality Full Synthetic 10W40 Above 80F (27C)
Question: What about a straight 30W Rated Synthetic with a vicosity index like a 10W30 Dino.
Answer: Might be a very good choice with a lack of VII although we have not tested a oil rated as such in the Zetec. Some of the racing/street 10W30's are essentially the same thing though. (I believe he was refering to Redline).
Question: What about the Synthetic 5W-40 Diesel Rated Oils?
Answer: Many of these are thicker than a car 10W40 and would put additional load on the oil pump.
Question: Would this damage it, I have heard thick oils are detrimental to the VVT?
Answer: No, it is just not needed. If you use one of these oils try to pick one of the thinner ones. VVT damage could only occur if the oil was very thick and not allowed to come up to temperature before being run hard.
Question: I have some German Castrol Syntec ACEA A3 0W30 would this be a good choice for Auto-X where the oil might be a relatively low temp at the start but the car would spend alot of time in the upper end of the rpm range?
Answer: We have not tested this oil but as long as it holds up without shearing it should work.
Gene
Question: Do you recommend the use of 5W20 in a 2004 Ford Focus for Extreme Duty ie Autox or Track Schools?
Answer: NO!
Question: What do you recommend?
Answer: Quality Full Synthetic 10W30 Below 80F (27C), Quality Full Synthetic 10W40 Above 80F (27C)
Question: What about a straight 30W Rated Synthetic with a vicosity index like a 10W30 Dino.
Answer: Might be a very good choice with a lack of VII although we have not tested a oil rated as such in the Zetec. Some of the racing/street 10W30's are essentially the same thing though. (I believe he was refering to Redline).
Question: What about the Synthetic 5W-40 Diesel Rated Oils?
Answer: Many of these are thicker than a car 10W40 and would put additional load on the oil pump.
Question: Would this damage it, I have heard thick oils are detrimental to the VVT?
Answer: No, it is just not needed. If you use one of these oils try to pick one of the thinner ones. VVT damage could only occur if the oil was very thick and not allowed to come up to temperature before being run hard.
Question: I have some German Castrol Syntec ACEA A3 0W30 would this be a good choice for Auto-X where the oil might be a relatively low temp at the start but the car would spend alot of time in the upper end of the rpm range?
Answer: We have not tested this oil but as long as it holds up without shearing it should work.
Gene