I use a fully synthetic 5W-20 since its easily available here. As far as the interval between oil changes I'm pretty horrible with those, for one reason or the other its something I never remember to do. Most of the times when I get an oil change the oil is always black and most of the times my engine is running low on it.
Which Motor Oil Do You Use / How Frequently Do You Change It?
- Thread starter stroke
- Start date
thebayratt
Satori's Dad "NTA_Shawn"
I usually use Royal Purple Full Synthetic 10w-30. It gets changed out around 4500-5000 miles. Works great, costs alot.
IMO, your overpaying for oil. There are a lot of choices that are equal or better than RP for a fraction of the price. Even for the premium oils out there, RP seems to have issues with excessive viscosity loss from shearing among other issues. Oil choice really should based on application, however RP seems to miss the mark accross the board. bobistheoilguy.com is a good resource for research.
U drive for NASCAR?
I use full synthetic Mobil One in my bucket. It's the only oil that has ever been used and I have never had an engine issue. My car has about 325k miles and still running strong. She burns a little oil but what car doesn't with that many miles. I change it twice a year and top off when needed.
Both cars now recommend change oil every 5k. The Lexus goes to the dealer so they can check everything over really good and gets a nice wash and wax job. The Prius goes to the local shop down street from work so I can leave with them for the day. I have no clue what type oil just that is regular stuff.
cubancigarman
CRA/NRA MEMBER
haha.. not quite...but i could be the pace car... 2008 BMW M3
----
The following is the only recommended and approved synthetic oil for BMW M (Motorsport) vehicles in the US market with gasoline engines, at the present time.
BMW Long-life rating LL-01 Synthetic Oils for BMW M vehicles equipped with S54, S62, S65 or S85 engines:
Castrol TWS Motorsport SAE 10W-60 Synthetic Engine Oil
Castrol Formula RS SAE 10W-60 Synthetic Engine Oil (BMW part number 07 51 0 009 420)
Rotella is the Stuff! The guys at the auto parts store always look at me funny when I buy two gallons and hop in my Subaru. :smile:
I've been a heavy equipment mechanic for 37 years. If you keep oil changed regularly and use a reasonable quality oil it doesn't matter if you use synthetic or dino. That said, I run dino in my cars and synthetic in my Harley. The synthetic does have better heat resisting properties.
Synthetics key advantage is time between changes.
Most also resist shearing better than conventional oil, which is important for diesels, Direct injected engines, or anything that produces high oil shear stresses (turbo, direct acting valvetrains, etc.) But that is one of the largest contributors to viscosity break down. Conventional oils usually include additives called viscosity index improvers which help control multi grade oil viscosity across various temperature ranges. These molecules are the ones that suffer from shear stress the most, and this is where synth oil's advantage is clear. Because Synth oil uses synthesized long chain hydrocarbons that help stabilize viscosity and which also happen to be less sensitive to shear stress.
Also, a lot of synth oils include additive packages that can include friction reducers, detergents, or other goodies.
Most also resist shearing better than conventional oil, which is important for diesels, Direct injected engines, or anything that produces high oil shear stresses (turbo, direct acting valvetrains, etc.) But that is one of the largest contributors to viscosity break down. Conventional oils usually include additives called viscosity index improvers which help control multi grade oil viscosity across various temperature ranges. These molecules are the ones that suffer from shear stress the most, and this is where synth oil's advantage is clear. Because Synth oil uses synthesized long chain hydrocarbons that help stabilize viscosity and which also happen to be less sensitive to shear stress.
Also, a lot of synth oils include additive packages that can include friction reducers, detergents, or other goodies.
Actually there is a big difference. Synthetic doesn't break down, just gets dirty. Regular motor oil breaks down over time. Looses its lubricity. I put over 250000 miles on my last truck. When I sold it, the guy did a compression test on it. It was still like new. Unfortunately someone tried to steal it and f'd up the wiring. The insurance company totaled it because it had 320000 miles at the time and it was a 97 Chevy dually. A sad day.
In our Chrysler, I change every 3000-3500, and I use Valvoline high mile 5w-30
In the beater that is only driven to and from work, I change every 3000-3500, and I use Pennzoil 5w-30. That car was my wife's when she was in high school, and that's all her dad put in it, and we haven't had any problems, so I just decided to keep using it.
My GSXR goes to the shop, and I would have to look up the paperwork to tell you what runs in the bike.
In the beater that is only driven to and from work, I change every 3000-3500, and I use Pennzoil 5w-30. That car was my wife's when she was in high school, and that's all her dad put in it, and we haven't had any problems, so I just decided to keep using it.
My GSXR goes to the shop, and I would have to look up the paperwork to tell you what runs in the bike.
BradMc
<b>Charity Liaison</b><br>BoM September 07
I have a 1998 Ford Explorer with 150k I just started to run synthetic Mobil One , it runs like a champ ? looks r a lil hard, but 9 years in MN will hurts the looks of anything...
On the 2010 Toy. PU it is done at the dealer ship, but we do have synthetic oil in it also .....
On the 2010 Toy. PU it is done at the dealer ship, but we do have synthetic oil in it also .....
Bigdankcloud
I read your bs... alot
I've been running Mobile 1 Full Synth 5w-30 since I got my 2008 altima coupe. The car runs smoother than alot of other oils. I did try Redline and Amsoil as well. While nice, the hassle and expense to get them isn't worth it when Mobile 1 is readily available.
I just put down 10k but I probably will do it sooner because my ECU is performance flashed and probably burns up more oil with the turbo. The manual for the GTI says 10k is fine, which with modern synthetics and engines usually isn't a problem.
I'm with Mr. Cuban and use Castrol TWS 10W-60 full synthetic in my '02 BMW e46 M3 every 6k-8k kilometers (not miles) even though OCI is set to 25k kilometers. I don't put a lot of kilometers on her as she gets stored every winter and I borrow the wife's car, which uses regular 5W-30 that she probably services closer to the end of the 12k kilometers OCI.