Oil viscosity for my 97 s14 turbo

[DewMan000]

I've read a bunch of different post and I'm seeing different answers from everyone so what do you think the best type of oil to run in my engine would be?

[2jz_240]

I have had great experience with Valvoline 20w50 non synthetic in my 1000+hp motors. I live in florida so it worked out pretty well..

[DewMan000]

Only thing is I live in New Hampshire so I want to make sure the viscosity is right for the temperature I was think of running a synthetic blend as well

[DewMan000]

I've also always ran a quart of Lucas in all my previous vehicles but this is my first 240 and first car with a turbo so I'm really not sure what to go with

[jr_ss]

Brad penn, 5w-30. You live in a milder climate where is cooler 70% of the year. If you wanted, use the 5w-30 in the colder months and switch to 10w-40 for the summer time. Brad penn lacks a lot of the additive packages so it needs to be changed regularly. It is not a 5k mile oil. Every 3k or 6mons atleast depending on how much the car is driven.

[hanzbrady]

Oil viscosity is related directly to bearing clearances. SR20's are on the tighter end of the spectrum opposed to older American v8's. So the tighter the clearance the thinner oil that you use. Using too thick of an oil will cause the bearing to not receive a coating of oil properly causing wear and vise versa, too thin of an oil will cause the bearing to not have an adequate amount of cushion to support the clearance that's required. Personally if your motor is healthy and within spec I recommend Valvoline VR1 10-30. It's the correct viscosity for our bearing clearances and has added zinc that our motors love. It's a non synthetic oil so changes will have to be often but 100% worth it in my opinion.

[Kingtal0n]

Oil viscosity is related directly to bearing clearances. SR20's are on the tighter end of the spectrum opposed to older American v8's. So the tighter the clearance the thinner oil that you use.

good advice, for a stock bottom end sr20det in Florida (ambient temps of 80*F~) with 100k+ miles we use 10W-40. Synthetic is preferred because of it's high temperature protection and generally is supposed to last longer.

[hanzbrady]

good advice, for a stock bottom end sr20det in Florida (ambient temps of 80*F~) with 100k+ miles we use 10W-40. Synthetic is preferred because of it's high temperature protection and generally is supposed to last longer.

I never liked synthetic because of it gunking up in oil pick ups due to people not checking their oil as often. It's great for it's durability, but many people pour it in and don't check it for 10k miles and that's terrifying. But all in all it's a personal preference.

[Javi802]

Texas summer heat using amsoil 10w30 for 2 years and no problems as of yet. In an sr20 of course.

Recently switched to the amsoil dominator series about 1000 miles ago.


The xl states its good for 10,000 miles or 6 months and even longer, but being as anal as I am I change every 3-5k miles

[DewMan000]

I think I'm gonna go with a synthetic blend 10w30 with a quart of Lucas stabilizer in it. If it doesn't like it ill play around with the viscosity till I find what it likes thanks for the input guys.

[jr_ss]

I think I'm gonna go with a synthetic blend 10w30 with a quart of Lucas stabilizer in it. If it doesn't like it ill play around with the viscosity till I find what it likes thanks for the input guys.

A quality oil doesn't need LOS...

Read here http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2437209, it may open your eyes a bit.

Here's another one for ya... http://web.archive.org/web/20100926133335/http://www.bobistheoilguy.com/images/lucas/lucas.htm

[DewMan000]

Damn thanks for the read looks like I've been wasting money for years. So just a good 10w30 now not gonna waste my money on the Lucus.

[Tom N]

Brad penn, 5w-30. You live in a milder climate where is cooler 70% of the year. If you wanted, use the 5w-30 in the colder months and switch to 10w-40 for the summer time. Brad penn lacks a lot of the additive packages so it needs to be changed regularly. It is not a 5k mile oil. Every 3k or 6mons atleast depending on how much the car is driven.



This right here. /thread