Parts for your 2008 Honda Civic-Gas struts

2008 Honda Civic gas struts — what’s fitted and what to service

Technical sources agree the presence of gas struts on a 2008 Honda Civic depends on body style. The Honda Civic 2006–2011 Service Manual (Helm Inc.) and the 2008 Owner’s Manual describe a bonnet supported by a prop rod on all variants, not gas struts. For the sedan/coupe (FD/FG), the boot uses torsion bars, not gas dampers. Honda’s Electronic Parts Catalogue for AU/NZ lists tailgate “stays” (gas struts) only for the 5‑door hatch (FN/FK), while the sedan/coupe show torsion springs and hinges. In short: hatch = rear gas struts, sedan/coupe = no gas struts.

Why no gas struts on the 2008 Civic sedan/coupe? Honda engineered the boot with torsion bars for balanced, counter‑spring opening, which saves weight and cost while keeping the hinge arms compact. The bonnet’s prop rod is likewise a simple, reliable solution that avoids the added mass and long‑term pressure loss associated with gas dampers. That’s why “gas struts” aren’t relevant for the boot or bonnet on these body styles.

For the 2008 Civic hatch, the rear tailgate is supported by a pair of gas struts that take the weight, hold the gate at full height, and help it lift smoothly. They’re charged with nitrogen and a bit of oil, providing controlled movement and preventing the tailgate from slamming. Over time, seals age and pressure drops, especially with frequent use or hot/cold cycles, so lift assist fades. Tell‑tales include a tailgate that sags, needs two hands to raise, drops in wind, or makes a hissing/creaking noise.

Servicing advice is straightforward: inspect the tailgate action at each service or about every 10,000–15,000 km. If there’s any hesitation, uneven lift, or the gate won’t stay up, replace both struts as a pair to keep balanced force. Choose quality units that match the original force rating and end‑fittings for the FN/FK hatch. Replacement is a quick job with basic tools—support the tailgate safely with a prop, then swap one strut at a time to avoid misalignment. Don’t try to re‑gas worn struts, most are sealed and designed for replacement.

Care tips: keep the ball studs/pivots clean and lightly greased, but never lubricate the chrome shaft—oil attracts grit and can damage the seals. Avoid forcing the tailgate shut if the struts are stiff in very cold weather, a gentle, steady close protects hinges and glass. With correct fitment and care, quality replacements typically last 5–10 years in Aussie and Kiwi conditions.

• Common symptoms of wear: tailgate won’t stay up, slow or jerky opening, needing extra push to lift, or audible hiss/creak.
• Best practice: replace in pairs, match OE spec, and support the tailgate during the swap.

FAQs

Does a 2008 Honda Civic sedan have gas struts?
No. The sedan/coupe uses a bonnet prop rod and boot torsion bars, so there are no gas struts to replace on those body styles. If the boot feels heavy, the torsion bar preload or hinge condition should be checked instead.

How long do Civic hatch tailgate struts last?
Typically 5–10 years, depending on climate and usage. Coastal exposure, frequent opening, or extreme temperatures can shorten life. If the gate won’t hold up or opens sluggishly, it’s time for new struts.

Can worn gas struts be re‑gassed?
Generally no. Most automotive tailgate struts are sealed units. Re‑gassing isn’t cost‑effective or reliable compared with fitting new, correctly rated struts for the FN/FK hatch.