I have an ’07 Mustang V6 with about 40,000 miles and I’m using 5-30 synthetic oil. At what mileage do I upgrade to a higher weight?

Published: May 20, 2009

Many Ford vehicles along with others recommend the use of 5w30 motor oil. On some Ford vehicles, using a higher-viscosity oil can set a DTC (Diagnostic Trouble Code) which is related to the use of wrong oil, contaminated oils, or using the wrong oil filter. Keep your vehicle maintained and use the correct weight, there will be no need for using a higher-viscosity oil.

Jerry Ives
Assistant Professor, Parts Technology
Alfred State College, Wellsville Campus

Tom Dayton writes:

Jerry – The 4.0L is actually one of the FEW recent Fords that 5W30 is recommended for. The general rule is 5W20 for everything EXCEPT the 2.0 Zetec SVT, the 3.3 Villager engine, 3.4 SHO, 3.9 Lincoln, and the 4.0’s. These all take the 5W30 you mentioned. (And of course the diesels running 15W40)

ATP Expands Graywerks Line of Harmonic Balancers

This expansion increases coverage by 25 million vehicles for popular makes and models that are growing in demand.

By Josh Cable

Josh Cable is the editor of Counterman and ShopOwner. He joined Babcox Media in January 2017, and has been working in the field of journalism since 1999.

Published: March 11, 2024

ATP recently announced the expansion of its Graywerks line of engine harmonic balancers with 18 new part numbers.

This expansion increases coverage by 25 million vehicles for popular makes and models that are growing in demand.

ATP harmonic balancers are developed to the OE design, ensuring they will install properly and function as intended, according to the company. The harmonic balancers are manufactured with high-grade metals and rubber that is bonded or pressed per the original specifications.