Owner reviews for engine oil

I have to use high zinc oil, Valvoline VR1 is the only oil I can buy that has enough zinc.

Also my main purpose is for wear protection and high temp protection etc which the regular line does exceptionally well

Porsche wanted you to use 0W-40 originally but now they recommend 5W-50 which is what Porsche sell for the 996 as their Classic oil for the 996. I’ve used Mobil 1 5W-50 for 3 years now, good pressure and next to nothing on the magnetic drain plug since so seems to be working. In my last change I’ve also added Ceratec on recommendation of another member of this sub and since have noticed the engine is a little quieter and get slightly better mpg so would recommend giving that a go if you are so inclined.

Idemitsu all day. It’s synthetic but what needs to be emphasized is the ingredient blend is purpose designed for a rotary to make the right lube + burn.

I use liquimoly leichtlauf 5w-40. Bit of advice: these are VERY easy to overfill if you're not careful, so refill slowly. Put in less than you think you need, once it registers on the oil level sensor, then start the car for a minute. After that, leave if for a few hours to drain before continuing to fill.

I use Mobil1 0w40 for the last 3 years (changed twice a year) with flawless UOA reports. I upgraded this summer to M1 5w50 as I do get low pressure warnings at times during high heat and heavy traffic situations summertime. Winter going back to 0w40

Ive used these. Motorex was the best. Castrol was pretty good, and Shell in case the others were not available. Now at 34k odo without problems.

I've been running that exact oil in my rx8 for about 1k km now and its still as smooth as ever

The most notable change between the Gen1 and Gen 2 is viscosity. It is much thinner than old oil. few of my customers have already noticed higher oil consumption compared to old formulation. Liqui Moly has done the same. They have reformulated their popular Leichtlauf 5W40 to much lower viscosity. @ 100C it is almost as thin as 5W30.

I've tested both those oils, and was not impressed with the results. Both oils still needed changing at 5k.