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Originally Posted By: Mainia https://m.youtube.com/watch?v=gfeXaB2TezY https://arstechnica.com/cars/2018/04/the...-at-just-19500/ The Crosstrek was SO SLOW, went with this AWD 1.6 turbo. . The Kona turbo engine is fantastic, but the car lose the rear passenger space and suspension finesse...

That looks like broken valve seals if there is no leakage and consume regularly a lot of oil. So at least is top overhaul to change valve seals, but of course to have a piece of mind will need all piston ring to be replaced as well.

Interesting that only the Mobil 1 EP 0w20 meet SN Plus while 5w20 is not. I though sometimes back M1 release statement that most of their oil has no LSPI issue, but without SN Plus seems 5w20 may not be as robust as 0w20 on LSPI issue.

Originally Posted By: buster Originally Posted By: HKPolice Valvoline just sponsored a youtube video yesterday that says LOW NOACK is best for keeping deposits out of modern GDI engines. Other than that one sketchy Polish research paper claiming high NOACK is better, is there any other...

Originally Posted By: buster I can't really think of a better AWD/4WD for the money than the Crosstrek. I was looking at Tacomas, and for the same price as a new Crosstrek, you're looking at $27k with about 35k miles. It's not an apples/apples comparison, but Toyota resale value is so high. It...

Redline is 0w20 should be good for your Subaru for normal driving, if you need to race it on highway often then you may go slightly thicker on 0w30. I do not see any benefit on running thicker than Redline 5w30 on your case, since the engine is designed to run 20 weight oil.

The car will not give noticeable better mpg with 5w20, I would say you put Liquimoly MoS2 will give additional MPG you are looking for. Other easy ways is just put more air on tyre until you can not stand the harshness, will definitely give better handling and mpg. If your car is using manual...

Originally Posted By: SHOZ If you are getting deposits on the plugs you must be burning oil right? May distort your actual findings as I have no deposits and do get a MPG increase but don't burn oil. I should pull the plugs on my Accent as it does burn a bit of oil and I am using the Ceratec...

Originally Posted By: demarpaint Originally Posted By: kr_bitog Originally Posted By: Dave9 There is some error in your methods. It is snake oil and does nothing useful. If anything you want the opposite, for the oil temp to rise to an optimal temperature quickly then your cooling system keeps...

Originally Posted By: SHOZ Originally Posted By: kr_bitog Originally Posted By: Kestas If everyone's car had an increase of 1-2 mpg, then you have single-handedly discovered a way to significantly reduce our nation's dependence on foreign oil... on the level of adding 10% ethanol to our...

Originally Posted By: Kestas If everyone's car had an increase of 1-2 mpg, then you have single-handedly discovered a way to significantly reduce our nation's dependence on foreign oil... on the level of adding 10% ethanol to our gasoline. I don't think auto manufacturers or the government would...

I believe if you can use Shell VPower every time, you dont need the PEA cleaner. However, in my area the Vpower price is much higher than other competitor so once a while i will use PEA based cleaner for preventive maintenance.

The Regane complete will slightly boost mileage due to friction modifier additive. However it may or may not be strong cleaner. So far I consistently has better carbon cleaning with Redline SI-1 compared to this, but for 1 dollar I think it is good value for preventive maintenance.

Originally Posted By: jrcowboys GUYS: You constantly see advise that fuel additives such as Techron are not needed as long as you use a premium gasoline. My experience is just the opposite. I have three cars and all three have responded very well to the use of Thehron. I use premium gasoline...

Originally Posted By: SubieRubyRoo A difference of 1-3 is likely within the margin of error for your measuring device, and certainly can be whitewashed due to atmospheric conditions. But, if Molygen makes you believe that a couple degrees is going to make some magic in your life, it's your...

Originally Posted By: Dave9 There is some error in your methods. It is snake oil and does nothing useful. If anything you want the opposite, for the oil temp to rise to an optimal temperature quickly then your cooling system keeps it in the optimal range. Actually it is true that using 0w20...

In the past, I have observed similar symptom with Liquimoly MoS2 additive, and my coolant temperature stay cooler a few degrees. However this round the test car is new car, I did not put MoS2 that was recommended by Liqui Moly for older engine. I would like the effect of Lubegard Engine...

Originally Posted By: Imp4 Your engine's oil temp is ultimately regulated by the cooling system. If you change the oil additive, then the cooling system would would still regulate to maintain overall engine temps per the ECM commands. It will not just run at a lower temperature when combustion...

Originally Posted By: MVFarms My daily driver junker truck is a 1992 F150 with the 4.9 . . . Operating temp is always just under 210F (read on a mechanical gauge). To try and quiet a lifter tick, I added a bottle of the Rislone concentrate to the Traveller 15w-40 that's in it, probably at about...

It depends on the source of leaks, if it valve seals, I dont think this will help for long. However if just transmission oil seal, this may work well. I have tried on my gearbox that suddenly leaks after recent seal change, and it holds well for few years.