Welcome to the Dodge Cummins Diesel Forum, the fastest growing Dodge Diesel Community on the internet.
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
If you have any problems with the registration process or your account login, please contact contact us
Newbie question. I am thinking about switching to synthetic oil at the next oil change. What is the maximum oil change frequency in miles recommended for synthetic oil? Does it require a different oil filter??
06 Ram 3500 QC, LB, SRW, 4x4, 5.8l HO Cummins, 48RE, 3.73 gears, all stock
Question: how many miles per month do you put on the truck?
i use shell rotella 15w40 dino oil, and mopar filters, I change the oil at 7.5K miles, fuel filters at 15K.
It takes me normally 6-7 months to get those 7.5K miles, with synthetic oil you should be able to go 10K-12.5K miles between changes.
I just would not want to keep the oil in my truck that long, I want to get that dirt, moisture and other bad stuff out of the motor.
synthetic oil is great and is the oil it use:
if the truck has to be on the road making money, you are putting a lot of miles on it fast and you do not want down the least amount of time for general maintenance.
otherwise, i want the oil changed more frequently,
plus the cost to use high dollar synthetic oil and pour it out at 7.5K intervals.
about twice the cost of shell rotella 15w40
Just my two cents:
in my old truck the oil is jet black in 10 mins after changing the oil and filter.
Research has shown that conventional oil hasn't even broken down at 10,000 miles. Which would mean that synthetic oil hasn't even began to break down at 10k. I use synthetic and run my oil for 15-20k depending on the texture and smell. I replace my filter between 7-10k. The whole reason we use filters is to keep the nasty stuff out of our sump. This is just my personal practice, and it has served me well thus far. Although it does go against everything that we have ever been taught about our mechanical values.
2004 Dodge 3500 5.9 6spd
The Following User Says Thank You to Kykntry88 For This Useful Post:
I run 0w-40 Duron-E with ELF7349, previous was 5w-40 Rotella T6 with Baldwin 7977. Had oil sampled at 6500km(4000mi), said to still run it but I changed anyways. I have 5000km on the 0w and have taken another oil sample and will send it in a run the oil if they say to.
I think I am going to start running 10,000km oil changes OR 200hr intervals
2006 2500 auto QCLB, 4" TBE, Flo-pro muffler, built trans, EFILive/CSP5 by AD, 3" BDS lift w/1" daystar spacer, 18x9, 35" Toyo M/T
The Following User Says Thank You to camorhino For This Useful Post:
i run 0-40 full syn all year long
change at 5000 miles
and air dog filters at 10,000 miles.
draining water filter in between whenever i feel like it. depends on weather/driving distances.
treat with 8oz stanadyne EVERY tank.
I've always been one to change my oil often
oil is cheap
although it does cost me just over $100 every change.
it cheaper than a rebuild
my supercharged bonneville
gets new oil every 5000 KM (3000 miles)
mobil 1 5-30 full syn
fuel filter twice to 3 times a year.
truck has 230,000 miles
car has 230,000 KMS
both run like a top.
both "go pedals" have a good relationship with the firewall.
03 SO - air dog2 165, Smarty S06, glow shift- 3in1 gauge (hot line probe) built trans(Transtech) S&B ram CAI, 60hp sticks, 4" TB-MBRP.
Aurora 3000 - failed for the 2nd time.
The Following User Says Thank You to snowman475 For This Useful Post:
no, youre not understanding what cummins is trying to tell you. when they say the LF16035 is synthetic they mean the filtering media inside the filter is synthetic material, not paper like in the cheaper filter.it has nothing to do with the kind of oil you run thru it.
The Following 3 Users Say Thank You to carlsonr For This Useful Post:
Everybody should change their oil when THEY feel it needs to be changed, whether that's 3000 miles or 15000. BUT, changing out a high quality synthetic oil before at least 7500 miles (in normal running conditions) is a serious WASTE of money. Hundreds of oil analysis reports over the years have shown that. Have one run on your oil after 5000 miles to see for yourself.
Now, people will come in here and try to scare you concerning "soot buildup generated by the 3rd gen EGR process". Again, oil analysis has shown this not to be a problem in a normal running engine under normal conditions. Just use the best oil filter you can.
Don't fall victim to synthetic oil media advertising. If you need to change oil every 3K or 5K to make yourself feel right, then use conventional types.
well jay if you browse the cummins website they tell you using synthetic oil is a waste of money except in arctic weather conditions.oil never wears out, it only gets its additive package diminished or gets chemically contaminated with another chemical.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.