You'd be lucky if your butt dyno could detect a 10HP difference, much less a 4HP difference

A dyno difference of 4hp can be attributed to many things (humidity, temp, etc) other than a different brand of oil.

 

+1

+2

 

^ 350z DYNO'ed
^335I
^ EVO
^ Corvette

 

all the synthetic oil companies claim the same thing, so can i gain 18 hp by switching from brands that keep saying +5hp? no lol.

 

20w50 vs. 0w50 = BS dyno claims

 

mobil 1 wit a M1-110 filter $24.00 here in florida

 

thats where i always go to get my oil. At one point i'd let them do it because it was like $42 for a synthetic oil change. Now im just too low.

 

i have an 04 5mt g coupe with 107m on it, i drive around 80-90 miles a day everyday so i am wondering what oil should i be using to handle my daily abuse. i currently use castrol gtx and was planning on going with royal purple on my next service,what grade would be recommended for a g with that many miles ? thanks

 

These HP claims make me LMAO. Change dino oil at 3,500 - 5,000, synthetic at 5,000-8,000 miles depending on driving habits (more spiritied/ stop and go = fewer intervals), use a quality filter or OEM and chances are performance will not suffer and your engine will outlive the usefulness of your G

 

If real lucky you may see a change in mpg.

 

Just put a quart of each in with your next oil change and grab that number right away.