Ok im coming up on my first oil change (2k miles). I use my FD as a daily driver as of far no problems with the car. Since this is my first oil changed i also got some spark plugs. For the Oil i decided to go with the 10-30 Penzoil (4 quartz) if i need more i'll get it? and I also got 2 leading and 2 trailing plugs NGK R's. I just wanted to know if thats a good oil for my FD and the driving conditions its in (DD) also what do you guys think about the choice of plugs.

any input would be greatly appreciated

also i live in FL

 

go with 20/50 oil, brand dosent really matter. 10/30 is too thin for hot weather. ngk's are good plugs, go with stock heat #s.

Michael

 

I was under the impression running a thicker oil would be bad for my car?

I drive the car 30-40 miles a day average m-f maybe a little less can someone explain to me why 20-50 would be better the a 10-30 thanks...

 

The heat breaks down the oil and makes it thinner.
Thinner oil means lower oil pressure and thats bad.

The thicker oil will keep the oil pressure where it needs to be and will lubricate better. Thats because its thicker to start with so when it gets hot its right at the consistency it needs to be.

 

Use what the manual says for a stock car. Thicker oil has its dissadvantages, Use what the factory says if its stock.

 

remeber the factory manual is ten years old. oil has changed a lot since then. i run (and suggest) mobil one 15x50 full synthetic. (it's the stuff with the red cap) also remember that small amounts of fuel will get in the oil and brake it down so it's better to go with the thicker stuff.

 

Really its changed alot? Fill me in. The weight have anything to do with it? Does less ash content mean to use heavier oil in a stock car now?

 

Ive heard to go with a 10-30 syn, because its properties are better, I'll let you know once my oil change is soon.

 

Hey bro since im in florida you should listen to me

20w50 normal oil and change it out every 2k on the dot. I like to use valvoline racing oil but I think anything will be fine. should take around 4.5 qts depending on what model you have and also only use mazda filters they are the best but kinda small so change the oil often.

you did ok on the plugs but I usually get the platinum ones bur9eqp not sure of a big difference tho

nice work

 

I use castrol 20-50 oil at all times, even in the cold, only because the rotary's produce so much heat and it does break the oil down easy...

 

just don't get penziol. I could **** in your engine and get better viscosity(spl??). I would use either, mobile1(too expensive though), castrol, or valvoline.

 

The BS in this thread is thicker than the oil these people put in their cars. Nothing wrong at all w/ 10W30. I've been using Castrol GTX in that weight for *years*, and have had ZERO problems.

 

I use valvoline 20w50 syn blend, and you should listen to me because i'm only 50 miles from you.

 

i use 20w50....

 

10w30 Mobile 1 Syn > *

I drive my beater in hot weather.

 

DeviousDevice7TT,
You may already know but make sure you do the plugs one at a time so the trailing/leading plugs dont get mixed up.

 

hey i thought rotaries are best running mineral oil arent they!?

 

uh...... only when its breaking in!


i use castrol 20-50 all year..... but then again, we only have 4 weeks of cold here!

 

20w50. no probs.

 

10w30, Mobil 1

 

10w30 here

 

10w30 will be fine. 30-40 miles a day most likely will barely get a heavier oil to a good operating temperature.

FYI, I run 10w30 on the street no matter the temp, and then 20w50 for the track days.

 

Castrol 20w50 here in Orlando. I have used it in all my cars since they were all high mileage. Never had any trouble.

 

The higher oil pressure you get from higher viscosity doesnt necessarily mean you are doing something good. Higher viscosity doesnt want to flow through all the different openings as freely, sure it keeps the pressure up but do you really get more oil to the paces that need it?
I run Royal Purple or Mobile 1 10w30 year round here in Phoenix and daily drive it all summer.

 

Steve Kahn from Gotham says 20w50 and Chris Ott from RP says 20w50...Guess what i use