Originally Posted By: Big Jim
5/20 was not in use when your car was built. 5/30 was the oil Ford pushed for most everything. Shortly after Ford introduced 5/20 in the year 2000 on the 2001 Escape (most everything else followed shortly) they published a TSB recommending backfitting 5/20 for nearly everything back to 1991. There were a few exclusions, but I don't think any of the SHO engines were among them.
I have a 2003 Escape and it has had a steady diet of 5/20 and probably always will. I have a 98 Contour SVT that started life with 5\30 and can't bring myself to change to 5/20 due to its mileage (245,000). I don't remember how many miles it had when 5/20 was introduced, but the nature of a high performance engine combined with some age has kept me from 5/20 on that engine. This is even though the Escape engine is closely related and other than a slightly larger cylinder bore is nearly identical.
Never had a problem using 5w20 in anything that required 5w30. It's standard practice for me now.
I got a friend to use it in his Durango and the gas mileage boost was substantial.
Never seen a mpg boost myself.
5/20 was not in use when your car was built. 5/30 was the oil Ford pushed for most everything. Shortly after Ford introduced 5/20 in the year 2000 on the 2001 Escape (most everything else followed shortly) they published a TSB recommending backfitting 5/20 for nearly everything back to 1991. There were a few exclusions, but I don't think any of the SHO engines were among them.
I have a 2003 Escape and it has had a steady diet of 5/20 and probably always will. I have a 98 Contour SVT that started life with 5\30 and can't bring myself to change to 5/20 due to its mileage (245,000). I don't remember how many miles it had when 5/20 was introduced, but the nature of a high performance engine combined with some age has kept me from 5/20 on that engine. This is even though the Escape engine is closely related and other than a slightly larger cylinder bore is nearly identical.
Never had a problem using 5w20 in anything that required 5w30. It's standard practice for me now.
I got a friend to use it in his Durango and the gas mileage boost was substantial.
Never seen a mpg boost myself.