Originally Posted By: FlyNavyP3
I don't disagree that there is fuel here, the real practical question is so what, and what do I do about it? There would still be fuel if I changed it fall and spring, likely just as much in the spring sample and next to none in the fall sample. Nickel is also an alloying metal used in everything else steel inside the engine from the cylinder liners to the camshaft and timing components. It's just as likely from there as the valve guides. Furthermore how do you figure that viscosity has slipped out of grade? The measured values look good to me. Your RC-F is wearing better, again so what? My mom doesn't drive your RC-F, she drives this car and at almost 70 it's there to serve her and not the other way around. [/quote]
So what? Well, do you care about your mom's fuel economy? Fuel dilution chews up engines and fuel economy like you couldn't believe. The question is how long is your mom going to keep this car? as long as it runs or up to 50K and then swap again at the dealer.
1. If you had an even slightly better UOA you could target what's the cause of the FD, that's not more than [censored].
2. Your insolubles are high, this is EGRed fuel residuals and poor filtration on this engine. This thing is getting hammered.
2a. You can start by using a better filter, I assume you're using the OE paper filter?
3. I'd switch to M1EP or AP in a 0W20 with a WIX XP filter. If you have a bit more money, the Amsoil SS is the way to go. The purolator does well too, but XP is the best at combating FD.
4. Get her a big bottle of Chevron Techron Fuel Systems Cleaner. Amsoil and VP racing 's cleaners are another good option.
5. What kind of fuel does your mom use? Can we get her to use Shell or Mobil?
6. This oil shouldn't drop more than 7.8cst at 5,000. 6.98 is WAY out of grade. Any decent lab would have flagged this at 7.6cst.
7. I did lots of work for Lexus, Nickel is a valve guide alloy, it is not found any where else in this engine. When I did work for Lexus 3GT, I got all sorts of info that is not available to the average BITOGer. Nickel is almost always a piston alloy or valve train metal in any engine.
8. Because it shows you on a larger engine with the same driving style but even harder, what proper UOA and selection does. It's merely an example for you to look at and see that there are solutions, unlike everything you've been told by Blackstone that it's all normal, etc.
9. You can't discount this UOA on the premise it serves your mother. Well exactly, it serves your mother so do you want it running like [censored]? These cars have a big difference when they idle rough or idle smooth, all of it adds up. That's not even money on oil and gas. I think you and I would much rather see this car serve her at optimal condition, saving her money and oil changes, than seeing it run rough and her having to do more than she needs to.
If your mother can get 10,000 miles out of an OCI and improve her fuel economy, decrease wear, I think you and I can agree, it would serve her better.
Lastly, you need FTIR and TAN to see some other details. 2 quality UOA's are worth more than a lifetime of Blackstone UOAs.
I don't disagree that there is fuel here, the real practical question is so what, and what do I do about it? There would still be fuel if I changed it fall and spring, likely just as much in the spring sample and next to none in the fall sample. Nickel is also an alloying metal used in everything else steel inside the engine from the cylinder liners to the camshaft and timing components. It's just as likely from there as the valve guides. Furthermore how do you figure that viscosity has slipped out of grade? The measured values look good to me. Your RC-F is wearing better, again so what? My mom doesn't drive your RC-F, she drives this car and at almost 70 it's there to serve her and not the other way around. [/quote]
So what? Well, do you care about your mom's fuel economy? Fuel dilution chews up engines and fuel economy like you couldn't believe. The question is how long is your mom going to keep this car? as long as it runs or up to 50K and then swap again at the dealer.
1. If you had an even slightly better UOA you could target what's the cause of the FD, that's not more than [censored].
2. Your insolubles are high, this is EGRed fuel residuals and poor filtration on this engine. This thing is getting hammered.
2a. You can start by using a better filter, I assume you're using the OE paper filter?
3. I'd switch to M1EP or AP in a 0W20 with a WIX XP filter. If you have a bit more money, the Amsoil SS is the way to go. The purolator does well too, but XP is the best at combating FD.
4. Get her a big bottle of Chevron Techron Fuel Systems Cleaner. Amsoil and VP racing 's cleaners are another good option.
5. What kind of fuel does your mom use? Can we get her to use Shell or Mobil?
6. This oil shouldn't drop more than 7.8cst at 5,000. 6.98 is WAY out of grade. Any decent lab would have flagged this at 7.6cst.
7. I did lots of work for Lexus, Nickel is a valve guide alloy, it is not found any where else in this engine. When I did work for Lexus 3GT, I got all sorts of info that is not available to the average BITOGer. Nickel is almost always a piston alloy or valve train metal in any engine.
8. Because it shows you on a larger engine with the same driving style but even harder, what proper UOA and selection does. It's merely an example for you to look at and see that there are solutions, unlike everything you've been told by Blackstone that it's all normal, etc.
9. You can't discount this UOA on the premise it serves your mother. Well exactly, it serves your mother so do you want it running like [censored]? These cars have a big difference when they idle rough or idle smooth, all of it adds up. That's not even money on oil and gas. I think you and I would much rather see this car serve her at optimal condition, saving her money and oil changes, than seeing it run rough and her having to do more than she needs to.
If your mother can get 10,000 miles out of an OCI and improve her fuel economy, decrease wear, I think you and I can agree, it would serve her better.
Lastly, you need FTIR and TAN to see some other details. 2 quality UOA's are worth more than a lifetime of Blackstone UOAs.
