oil type synthetic really worth it?

[Turb0wned]

i been running regular castro high milage 10m-40 oil in my sr snice ive had it and have had no problems ive prob put about 15k on my sr by now i dont see how synthetic is acually worth the money... or even worth putting in, im not trying to argue with anyones opionions matter of fact i would like to hear what ur thoughts on this topic are, im going to be changing my oil again within the next few days and maybe ill switch to synthetic...

[Nismo_Freak]

It is, but many people don't quantify the cost difference with the frequent oil changes.

Then again your strongest dyno oil can be better than your worse synthetic. However if you buy a quality syn. you can't beat the package.

[Hijacker]

the thing with going synthetic is the heat resistance. You're not going to see how much coking of the oil that will come from running dyno oil for a while, but I can guarantee that there is probably some buildup in the turbo.

[PalmerWMD]

For a turbo application its pretty hard to beat a syn..Summer or Winter..

Fred..

[Turb0wned]

so go synthetic?

[kuramaya]

Any Car - Yes Synthetic

Turbo Car - Synthetic 15W 50

If you can afford it - HKS Super Turbo Racing Oil 15W-50. If not Mobil 1 is fine.lateDaryl

[Turb0wned]

15w-50 really... isnt take a little thick

[kuramaya]

Actually no unless its winter, freezing where you are, and you never run you car hot...actually it is the only weight the HKS oil for Turbo APS is sold over here....additionally, its the only weight of mobil 1 that is sold on or off base. Everyone I know which includes every SR powered car, and RB Powered Cars all run 15w-50. I have been running it as long as I have had the car..lateDaryl

[SpeedRacer1]

I run 10W30 in winter, 15W50 in summer.

[Turb0wned]

what do u think about redline 15w-50?

[kuramaya]

Redline is great stuff!

[s13sr20chris]

i prefer redline. if you cant afford a synthetic you may consider a motorcycle oil as they all have zddp afaik.

[Turb0wned]

yea im thinking about goin with redline from now on

[Hijacker]

I run 10W30 in winter, 15W50 in summer.

ditto

[TogueDrifter]

I just put in 10w40 castrol syn. I'm happy

[deCksy]

I just put in 10w40 castrol syn. I'm happy

lol... kinda old post to revive... but NEO is the **** 15 50 here NEO STYLE!

[DRIFTINIZ]

anything bad w/ 5W-30 Mobil 1 Super Syn......i haven't driven the car w/it for more than 100 miles.......?

[UK-SRi]

Look on Se-r.net some ofg the guys there have done 100K+ and track racing too with 5W30 and still found honing marks when stripping down.

Mike

[TogueDrifter]

Oh, Sorry.... I miss understood, too tired last night

[DRIFTINIZ]

Look on Se-r.net some ofg the guys there have done 100K+ and track racing too with 5W30 and still found honing marks when stripping down.

Mike

honing marks......please explain.....still learning stuff here LOL

[Nowhere]

Hone marks are on the piston bores, they are the criss-cross pattern grooves that hold an oil film (ultra thin..) to keep the friction down on the up/down stuffs (pistons, rings).

That means the engines are experencing little internal cylinder wear (high friction will remove metal from the walls, scraping off the hone marks) with the 5w 30 oil.

some VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY VERY good reading on oil:

http://63.240.161.99/motoroil/index.html

It's looong but goooooood.

READ IT!

[srdrps13]

ive been using mobil 1 synthetic 10w30... is this alright?

[DRIFTINIZ]

Hone marks are on the piston bores, they are the criss-cross pattern grooves that hold an oil film (ultra thin..) to keep the friction down on the up/down stuffs (pistons, rings).

That means the engines are experencing little internal cylinder wear (high friction will remove metal from the walls, scraping off the hone marks) with the 5w 30 oil.

READ IT!

so with the 5W i should be good??

[hazw8st]

Yes it is worth it....

[Seishuku]

I run Mobil 1 10w30 in all my engines.

[shadowracing]

since i got my sr i've doon 2 oil changes the first with royal purple 10w-30 and felt improvement, so yeah you get what you pay for. also how often does everyone change their oil?

[FattyMcBaggins]

I cannot stress enough how important using a synthetic oil is. Synthetic's virtually eliminate the threat of coked turbo bearings because the elements that cause coking are barely present in synthetics. Also, I'd stay away from Castrol products. I worked as an intern with Shell Corporation, and did a bunch of studies and such on other oil companies business practices. castrol has a bad reputation for being a CHEAP manufacturer. They don't pump their own dino oil, they buy their oil from whoever is selling it the cheapest. This makes it hard for them to really maintain a quality product. They also buy the ingredients for their synthetics in the same manner. Mobil on the other hand pumps their own oil, refines their own oil, and then sells it, so they actually control the entire process involved with their product. I would recommend using Mobil 1 synthetics without any second thought. I personally shy away from "Racing Oils" because they're meant for...well...racing. They may be able to tolerate higher heat levels, but they also aren't meant for putting around town and such. I remember reading an article about Racing Oils tending to be very ineffective for regular street driving. use Mobil 1 most of the time, and toss in the racing oils whenever you have a track day. That's what I would do

[hazw8st]

i been running regular castro high milage 10m-40 oil in my sr snice ive had it and have had no problems ive prob put about 15k on my sr by now i dont see how synthetic is acually worth the money... or even worth putting in, im not trying to argue with anyones opionions matter of fact i would like to hear what ur thoughts on this topic are, im going to be changing my oil again within the next few days and maybe ill switch to synthetic...

Synthetic is the only way to go....

[Neil]

I finally put 10w30 mobil 1 in my SR this evening after running a couple short "flushout" dyno oil changes after my swap.

I noticed the motor had a new high pitched metallic sound to it. Drove into town and it went away ::

p.s. K&N filters on a filter relocate kit are the PWNZ!. since they have an anti-drainback valve the filter stays filled with oil instead of draining back down to the pan, this means oil pressure builds instantly like it should instead of having the valvetrane run dry for a second.

[DRIFTINIZ]

p.s. K&N filters on a filter relocate kit are the PWNZ!. since they have an anti-drainback valve the filter stays filled with oil instead of draining back down to the pan, this means oil pressure builds instantly like it should instead of having the valvetrane run dry for a second.[/QUOTE]

do fram filters have the same anti-drainback?? just curious.....