Hey guys, just looking for a quick answer.

With boosted B series motors what would be the best grade of oil to run? this is on a daily driver.

Your help is greatly appreciated.

Thanks
Travis

 

i have been running 5w30 synthetic

 

yep same here (mobil 1)

 

what do you guys think about 5w40 or 10w40? one tuner here has recommended that grade?

 

I use 5w30 reg. oil because my engine has use reg. oil since it's been of the lot.

 

i use royal purple 10w30

 

hmm ok. So its a toss up between 5w30 and 10w30. Engine has fresh 81.5mm bore. new valvetrain, bottem end is built with new crank, rods and pistons. hp goal is in the 400whp mark.

 

depends on what temperature range the car will be driven in.

 

5w30 since u live in ontario

 

all depends on the weather outside... if its winter time, 5w-30 is best, that way cold starts are easier cuz the viscosity of the oil is lower but still a 30 weight when warmed up. you can use that all year round really. 10w-30 is fine when its warmer out.

if your motor is older, id stay away from synthetic, its soo thin that it finds leaks. and if your motor is really old.. then the synthetic will disolve the built up sludge and possible clog something in the oil system somewhere..

if the motor is new, its fine... AFTER BREAK IN. but once you use synthetic, ...you cant go back.

even on a new motor, i would only use a synthetic BLEND... cuz honda motors really arent ment for it... a friend of mine built an all motor poor man itr GSR.. Mobile 1 from day ONE... 66,000 miles later it smokes a bit and leaks a lil... synthetic is just too damn thin IMO..

 

I use Amsoil 20-50 synthetic racing oil and run 11 and 16 lbs boost. Amsoil 2000 synthetic racing oil has better load bearing and heat tolerance than regular oils. Synthetics can cost between $4 & $10+ per quart. Whatever you use, change it about every 1-2 K and use good filters (Hastings or other highly rated filters)

 

Mobil 1 10w-30
i run about 15 lbs of boost daily

 

castrol gtx 10-30. running 10lbs daily.

 

I use 15-40 delo. I live in hawaii so I don't worry about cold starts. I think I will start using 10-30 though. Oil with large viscosity ranges like 5-40 are not good can mess with turbo. cokeing

Hatcheh2 had some good info.

 

I live in ontario too I use 5w30 in the winter and 10w30 in the summer

I was using mobil 1 full sythetic 5w30 but the **** burned way to fast I was putting in a quart a week
Last oil change I tried Quaker state full sythetic 5w30 and I haven't burned a drop in two weeks.<<<<<its cheaper than mobil one also.

 

what about filters? is oem the best you can use or what.

 

i use quaker state filters

 

I used oem oil filter and Shell 5w40 full synthetic from walmart. I do notice that the full synthetic 10w30 Mobil oil burn faster.

 

honda filter ftw.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HatchEh2 &raquo;</TD></TR><TR><TD CLASS="quote">

even on a new motor, i would only use a synthetic BLEND... cuz honda motors really arent ment for it... a friend of mine built an all motor poor man itr GSR.. Mobile 1 from day ONE... 66,000 miles later it smokes a bit and leaks a lil... synthetic is just too damn thin IMO.. </TD></TR></TABLE>

i'm sure it didnt live an easy life...that can be a large part of a bit of smoking

 

15w50 for me. Tried 5w30 and 10W30, but the oil always got too thin from heat. Look like I was pouring water when changing oil.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i use royal purple 10w30</TD></TR></TABLE>