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Hello, Haven't been by here in a while and curious to get some thoughts on oil to use in my '19 C7 Grand Sport. This car is driven about 400 miles a month, mostly on weekends. The car is driven very spiritedly, unlike the vast majority of these cars. Car is driven on group "cruises" in the...

Originally Posted By: Dyusik Originally Posted By: aquariuscsm That's a LOT of iron for only 1450 miles. Thing runs well while oil is below freezing. In addition, this oil has a lot more hours on it than the average 1500mi OCI. Thank you for sharing this report. Oil looks great, the crud in...

Originally Posted By: umungus1122 Originally Posted By: Atomic Originally Posted By: umungus1122 98% drive off at WOT in sub-freezing weather after just starting up? Hmm...maybe we should take a poll. WOT being the key phrase here. If you do, yes, I'd call that unnecessary abuse. It's your...

Originally Posted By: umungus1122 98% drive off at WOT in sub-freezing weather after just starting up? Hmm...maybe we should take a poll. WOT being the key phrase here. If you do, yes, I'd call that unnecessary abuse. It's your engine though, so be my guest. Try reading the thread next time...

Originally Posted By: umungus1122 Starting up an engine and running it WOT in sub-zero weather for no reason just shows you don't respect your belongings. Give the car to someone who will respect it and beat on a piece of junk Maxima or Civic. You know what they say about opinions, and...

Results are in: https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4747074/1997_Camaro_%7C_Mobil_1_HM_%7C_1,4#Post4747074

Original discussion before sending this sample in: https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4735674/Testing_the_%22oil_goes_bad#Post4735674 I'm curious to hear thoughts based on this run.

Originally Posted By: JAG Oil in thin films, like often occurs on the sides of oil bottles can turn into an oxidized, sticky layer of varnish within several years. It never experienced blow-by, high temps., or the oxidation catalysts of iron and copper like oils used in engines have. I’d be most...

Originally Posted By: 1989outlaw If you’re doing full throttle pulls immediately after starting the engine in sub zero temps , don’t be worried about the oil . The engine isn’t going to last long enough for it to matter. Now that I'm finally by a computer again, I will address this and the...

Originally Posted By: Ducked Originally Posted By: Atomic I have no idea which side of the argument is correct, nor do I care. Why the UOA then? Public service? If so, I salute you. I care a bit, as in I'm mildly curious, but not enough to get a UOA. Think I'm on about 6 years with the...

Originally Posted By: 4WD Started cold in sub zero temps and then an immediate run at WOT? … any reason for that? I've done this since I owned the car as a teenager; I simply always have because I lived in the middle of nowhere and could WOT most everywhere (mainly trying to get to school and...

Having lurked this forum for most of the past ten years, I've seen endless discussions on whether oil "expires" with age. I will soon have a data point to add to this ongoing debate; I have no idea which side of the argument is correct, nor do I care. I just did a oil run on my 1997 Camaro...

This car specs 5w-50; no other oil weights are mentioned as an option. Ford is obviously convinced this motor needs it. Being a 2.3L DI Turbo that puts out 350hp, that is a lot of stress, especially the way most of these cars are driven. Mine sees wide open throttle and high revs daily. The...

Hello, Last time I stopped by was to get input on what oil I should run in my new Focus RS. I have been on Mobil 1 5w-50 and a Fram Ultra and just completed second oil change at 10.5k (7.5k run). With the arrival of winter, I am noticing the oil is never exceeding ~170 degrees, even with my...

Thanks for all the advice. After much consideration, I completed the first oil change yesterday with M1 5w-50 at 2,964 miles. How long can I expect this oil to stay in grade? Or is it highly probable that most any 5w50 is going to quickly shear, especially in this application? I'm thinking...

Thanks for the info everyone. Again, I want to state I will absolutely be using 5w-50 to maintain warranty. That said, it sounds like the 5w-50 shears and gets beat up quickly. I don't know how aggressive the oil change light is on the Focus RS, but on my prior ST it would go 10k (I changed...

I have just purchased a fully optioned Focus RS in Stealth Gray, and will be taking delivery in Florida and driving it northern Illinois, then to Ohio, putting about 1700 miles on it in the next few days. Ford specs 5w-50 with the following note: "If you are unable to find an engine oil that...

I have recent passed 41k miles on my Focus ST that I've given nothing but PU and PUPPP since factory fill was dumped at 1k. The only store I've been able to find it at now no longer carries it and I didn't feel like waiting since I had already pushed the prior change out 7,100 miles. I went...

Given there is a seemingly meaningless $3 difference between regular M1 and the EP flavor, is there any real reason not to spring for the EP? Just changed the oil in my wife's Escape with the EP and Fram Ultra. Any reasons not to run it out 10k with the 2.0 Ecoboost? My Focus ST has the same...

Don't go trying to reinvent the wheel by using the incorrect oil grade. I have put 40k total miles on my ST and Escape with the 2.0 EB and the PUPPP 5w-30 has performed exceptionally well being changed out at 6k. Over on the ST forums, you will find plenty of people with tunes and other mods...