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I am doing an oil change today on a new vehicle. I was curious if you lubricate the o-rings that are on the bottom of the oil cap and on the dipstick ? I know you need to lube the o-ring on the oil filter. I wonder if the o-rings on the oil cap and dipstick should be dry for more "grip"...

I just surpassed 500 miles on my 2024 Subaru BRZ, and the factory oil was dumped last evening. It is being replaced with Amsoil 5w-20, and a new Subaru OEM oil filter. I will start driving the car as needed and I consider break-in to be over.

^ I'm in London, ON, too, lol. Sounds like a great deal for oil, the good thing is that it is made by a major manufacturer (CT doesn't make oil), it has all of specs on the label, so it looks good, should work well for your application. Enjoy the savings. They may release a new version of...

Having owned a Honda S2000 I know the importance of checking your oil levels. The rule of thumb was at least at every gas fill-up with those cars. That oil just disappeared pretty quick at times depending on driving conditions

Thanks this is an excellent bit of information for my question, thank you, it makes perfect sense. This is for a new Subaru. Knowing that the markings on the dipstick are based on a cold engine really helps, I find a cold engine oil reading is much clearer to read on the dipstick, when hot...

When I check it cold the reading seems to be much clearer to read, less oil being dragged up the tube it seems , like you can get when it is hot.

I've been wrenching on my own cars for about 30 years , mostly as a hobby, I like tinkering on cars, no expert by a long shot. I have seen some wildly varied readings as you noted, I hate those. I had a Honda S2000 that was nearly impossible to read the dipstick when the oil was...

I always thought the oil dipstick reading would be somewhat similar from cold to hot readings, but I have some difference on my new car. If I read the dipstick cold after sitting overnight it is slightly under the full mark. I believe oil expands as it is heated, but more oil should drain...

I checked the motor oil level this morning on my new car, it was down about 1/8th of a quart - with 400 miles on the car. I checked the oil with the engine cold, and after it sat all night. I will compare it to hot levels next time I drive it, see how it compares. 0w20 oil and the...

Well no, it certainly exists out there in the information world, whether it was accurate or just a paid test for a sponsor of the medium is anyone's guess. The dyno test existed but I can't say it was real or not.

Thanks for that added info, my rear differential fluid - Redline 75w90 doesn't have the typical LS additives , so that should be good.

This topic reminds me of that ping pong ball air test that K&N filters used for their air flow advertisements that were sitting on the counters of performance shops back in the day. You swore it was a massive change in air flow just by that test and you just had to make more power as a...

Let me guess, your cars never burn a drop of oil either :)

The only part of 1000 mile (1600 kms) break-in I find hard is the 4000 rpm suggestion limit. I don't really drive my cars very hard and WOT high rpm driving would not be that hard to avoid, but keeping it under 4000 rpms and 50% throttle for 1000 miles is too much. I will use the 500 mile...

Good point. I have always been a guy to say that I want to keep my vehicles for life and run them into the ground, but in reality I never owned any of them beyond five years, mileage and boredom always got me, lol . I do want to keep the BRZ long term hence it being a garage queen, but we...

Thanks Patman, I seem to be right at that point now, I agree with your suggestion. My rpm sweeps were done to about 500 below redline, but low throttle. I do the driving on some country roads with no one around (especially the cops). :)

I took my car out today for one more drive, it has been in winter storage since I brought it home a few weeks ago. I try to take it out on nice dry days to get some mileage on it, and I make sure I get the oil hot and drive for a good distance. I now have 600 kms (400 miles) on it. I don't...

That is a good suggestion, I like to go about 2 psi over recommended on most of my vehicles.

That Slick50 suckered me too, ****, the more I think of all the money I wasted on useless products now that you guys bring it up, lol. Oh boy.

Do you think there is any difference in reduced friction , if viscosity is similar.