Glad I found this forum...so much to ask, where to begin?!
Have an 02 Silverado with the 5.3, tow frequently (almost everywhere it goes, daily), a trailer of about 3500 lbs. Been using Mobil 1 5w-30 (weight as recommended by the factory).
Several questions, as follows:
1) Are there any actual differences between Mobil 1 regular, and Mobil 1 "truck and suv formula" (per Mobil's website, they both have 800 / 900 ppm of phosphorous and zinc respectively), but I'm not sure if there are other differences...that was the only spec I could find on their site.
2) Noticed that the Mobil 1 "high mileage formula" has 900 / 1000 ppm of phosphorous and zinc respectively - would it be better for preventing wear? And does it still have the exact same formulation of the other additives as the "regular formula", i.e., detergents etc?
3) What is supposedly better about the Mobil 1 "extended perfomance" formula? The phosphorous / zinc is the same as the regular formula, but that's all the information I have found, maybe it has a higher amount of other additives to start with, to facilitate longer drain intervals?
4) I am using a filter mag, and wondered, as silly as it may sound, if a powerful magnet such as this could possibly be removing the ferrous-metal additives in the oil itself. Many people show super-fine, almost dust-like particles on videos and I wonder if it's just pulling that out of the motor oil itself as well as grabbing metal shavings from the motor
5) Are zinc additives such as zddp a good idea to mix with, say, Mobil 1 oil, for a 94 GMC with a 350, or an 02 with a 5.3? Is the reduction of zinc in the currently available SM specification harmful to the engine in terms of reduced wear protection? (I'm far less concerned about my catalytic converter than my engine in the long term)
Have an 02 Silverado with the 5.3, tow frequently (almost everywhere it goes, daily), a trailer of about 3500 lbs. Been using Mobil 1 5w-30 (weight as recommended by the factory).
Several questions, as follows:
1) Are there any actual differences between Mobil 1 regular, and Mobil 1 "truck and suv formula" (per Mobil's website, they both have 800 / 900 ppm of phosphorous and zinc respectively), but I'm not sure if there are other differences...that was the only spec I could find on their site.
2) Noticed that the Mobil 1 "high mileage formula" has 900 / 1000 ppm of phosphorous and zinc respectively - would it be better for preventing wear? And does it still have the exact same formulation of the other additives as the "regular formula", i.e., detergents etc?
3) What is supposedly better about the Mobil 1 "extended perfomance" formula? The phosphorous / zinc is the same as the regular formula, but that's all the information I have found, maybe it has a higher amount of other additives to start with, to facilitate longer drain intervals?
4) I am using a filter mag, and wondered, as silly as it may sound, if a powerful magnet such as this could possibly be removing the ferrous-metal additives in the oil itself. Many people show super-fine, almost dust-like particles on videos and I wonder if it's just pulling that out of the motor oil itself as well as grabbing metal shavings from the motor
5) Are zinc additives such as zddp a good idea to mix with, say, Mobil 1 oil, for a 94 GMC with a 350, or an 02 with a 5.3? Is the reduction of zinc in the currently available SM specification harmful to the engine in terms of reduced wear protection? (I'm far less concerned about my catalytic converter than my engine in the long term)
