Mobil 1 AP- GM Turbo Test
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Originally Posted by Shannow
Originally Posted by tig1
For the 41 years I have used M1 oils I have found their oils are all great for low coke deposit performance.
So what specifically have you measured to determine the parameter "great" for "low coke performance", and what did you compare it against ?
Never any sign of ring coking even in engines with 350K Miles(not KMs) at 10K OCIs.
Originally Posted by tig1
For the 41 years I have used M1 oils I have found their oils are all great for low coke deposit performance.
So what specifically have you measured to determine the parameter "great" for "low coke performance", and what did you compare it against ?
Never any sign of ring coking even in engines with 350K Miles(not KMs) at 10K OCIs.
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There are all kinds of things to think about with oil, but I put cleaning ability and ability to handle high heat at or near the top because I believe it can prevent many other issues as an engine piles on the mileage and ages. With the limited data available for decision making, I tend to think M1's best oils with high PAO content presents one of the best choices out there. The best personal experience I have is a 1996 3.4 Toyota sludger that never showed an issue because it ran on a strict Mobil 1 diet with a 3k to 5k OCI regimin. That thing looked and ran like new under the valve covers after about 180k miles when it was sold.
Originally Posted by IndyFan
There are all kinds of things to think about with oil, but I put cleaning ability and ability to handle high heat at or near the top because I believe it can prevent many other issues as an engine piles on the mileage and ages. With the limited data available for decision making, I tend to think M1's best oils with high PAO content presents one of the best choices out there. The best personal experience I have is a 1996 3.4 Toyota sludger that never showed an issue because it ran on a strict Mobil 1 diet with a 3k to 5k OCI regimin. That thing looked and ran like new under the valve covers after about 180k miles when it was sold.
I feel the same. Keeping the engine clean is very important. I think your top tier synthetics like M1/Amsoil/ and even RL, have always done a great job at that. I would add Pennzoil PP/PUP into that mix as well. Amsoil is probably the best as they can boost up their oils a bit being they aren't tied to shareholders. Mobil 1 is a close 2nd.
The PAO grades of M1 are going to provide the highest resistance to oxidation, but as far as cleaning ability that may depend on the oils with the most AN/POE base stocks.
There are all kinds of things to think about with oil, but I put cleaning ability and ability to handle high heat at or near the top because I believe it can prevent many other issues as an engine piles on the mileage and ages. With the limited data available for decision making, I tend to think M1's best oils with high PAO content presents one of the best choices out there. The best personal experience I have is a 1996 3.4 Toyota sludger that never showed an issue because it ran on a strict Mobil 1 diet with a 3k to 5k OCI regimin. That thing looked and ran like new under the valve covers after about 180k miles when it was sold.
I feel the same. Keeping the engine clean is very important. I think your top tier synthetics like M1/Amsoil/ and even RL, have always done a great job at that. I would add Pennzoil PP/PUP into that mix as well. Amsoil is probably the best as they can boost up their oils a bit being they aren't tied to shareholders. Mobil 1 is a close 2nd.
The PAO grades of M1 are going to provide the highest resistance to oxidation, but as far as cleaning ability that may depend on the oils with the most AN/POE base stocks.
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