📋 At-a-Glance
Annual cost
$520-$760
Oil interval
6K-8K mi
Years covered
2011-2023 (LX-platform)
Trans fluid
Mopar ATF+4 / ZF Lifeguard 8 (MS-11774)
The Chrysler 300 is built around the 3.6L Pentastar V6, 5.7L Hemi V8 (MDS), ZF 8HP70. 3.6L Pentastar V6 (BGE/BGF) or 5.7L Hemi V8 with MDS. Both pair to the ZF 8HP70 8-speed automatic (Mopar code 8HP70). RWD and AWD configurations. This schedule pulls from manufacturer factory intervals AND real-world owner data from forums and independent shops, because the "lifetime fluid" claims rarely match how the vehicle actually wears.
📅 Service Intervals by Mileage
Each milestone is cumulative, do the lower-mileage items at every interval. Severe-use schedule (towing, short trips, cold climates, dusty conditions) should halve the listed mileage.
| Mileage | Services |
|---|---|
| 5K mi | • Oil & filter (Mopar 0W-20 or 5W-20) • Tire rotation • Inspection |
| 15K mi | • Engine air filter • Cabin filter • Brake pad inspection • Hemi MDS-related lifter inspection (audio check) |
| 30K mi | • Brake fluid flush (DOT 4) • 5.7L Hemi spark plugs (16 plugs total - $200-$300 service) • PTU fluid inspection (AWD) |
| 60K mi | • ZF 8HP70 fluid (ATF+4 / MS-11774) - critical • Rear diff fluid • Coolant strength test |
| 100K mi | • 3.6L spark plugs (Iridium) • Coolant flush (Mopar OAT purple) • PCV valve • Brake fluid flush #2 |
| 150K mi | • Timing chain & guides inspection (3.6L) • Water pump • Drive belt, tensioner, idler • MDS lifters (5.7L - replace if ticking, do not extend) |
Total annual maintenance estimate: $520-$760Averaged over the first 100,000 miles, including oil, tires, brakes, fluids, and consumables. Years with a 60K or 100K major service can be 2-3x this average.
⚠ Most-Skipped Service WarningZF 8HP70 Transmission Fluid Service. Costs $450-$650 but prevents a $5,500+ failure. Chrysler still labels the 8HP70 fluid lifetime. ZF officially recommends service at 60K-80K mi. Skipping it leads to the classic mechatronic sleeve leak and harsh shifts.
🔧 Chrysler 300 Common Issues to Watch
Beyond the standard schedule, the Chrysler 300 has a few known wear items and TSB-documented issues that show up in independent-shop data:
ISSUE 1
Hemi MDS Lifter Tick (5.7L)
The Multi-Displacement System collapses lifters by 80K-130K. Cylinder-deactivation lifter sets cost $2,500-$4,500 installed. An MDS disabler (Range, Tazer) stops the cycling and is a common preventive choice.
ISSUE 2
Pentastar 3.6L Valve Seat (W67)
2011-2013 cars had a left-bank head recall (Mopar W67). Cylinder 2, 4, or 6 misfire at cold start is the giveaway. Replacement head: $2,400+.
ISSUE 3
ZF 8HP70 Mechatronic Sleeve Leak
The mechatronic adapter sleeve hardens and leaks fluid into the harness connector. Bench test on any pre-purchase. Sleeve and gasket kit: $200 in parts, 3 hours labor.
ISSUE 4
AWD Front Differential Actuator
2011-2014 AWD models had front differential connect/disconnect actuator failures. CEL with C218A. Replacement is $400-$700.
📅 Year-Specific Problem Pages
Issues vary by model year. Click through for a year-by-year breakdown of recalls, TSBs, and common complaints:
❓ Frequently Asked Questions
How often should I change the oil on a Chrysler 300?
Use the manufacturer-recommended interval as a maximum (typically 6K-8K miles), and 5,000 miles or sooner under severe use (short trips, cold climates, towing, dusty roads). Use Mopar 0W-20 (3.6L), Mopar 5W-20 (5.7L) - substitutes void the spec.
What is the most expensive Chrysler 300 maintenance item?
Typically the transmission service. Skipping it leads to multi-thousand-dollar failures. The single most-skipped service on the Chrysler 300 is the ZF 8HP70 Transmission Fluid Service.
How much does Chrysler 300 maintenance cost per year?
Plan for approximately $520-$760 per year averaged over the first 100,000 miles, including oil changes, tires, brakes, fluids, and consumables. Years with a 60K or 100K major service can be 2-3x the average.
Can I do Chrysler 300 maintenance myself?
Oil changes, air filters, cabin filters, tire rotations, brake pads, and battery swaps are well within DIY range. Specialized services (transmission flushes, PTU fluid, timing chains) typically require dealer tools or a knowledgeable indie shop.
What happens if I skip the ZF 8HP70 Transmission Fluid Service?
Chrysler still labels the 8HP70 fluid lifetime. ZF officially recommends service at 60K-80K mi. Skipping it leads to the classic mechatronic sleeve leak and harsh shifts. Cost to do it on schedule: $450-$650. Cost to fix after failure: $5,500+.
Are dealer services worth the price over an independent shop?
For warranty-period maintenance, the dealer is the safe choice. After warranty, a well-reviewed independent specialist familiar with this vehicle is typically 30-50% cheaper for the same OEM-spec service.